Celtic art is connected to the people known as the Celts, who spoke Celtic languages in Europe from ancient times until today. It also includes the art of ancient groups whose language is unknown but who share cultural and artistic similarities with Celtic-speaking people.

Celtic art is a challenging term to define because it covers a long period of time, many places, and various cultures. Some experts believe there was a continuous artistic tradition in Europe from the Bronze Age and earlier Neolithic times. However, most archaeologists use "Celtic" to describe the culture of the European Iron Age, starting around 1000 BC, until the Roman Empire conquered much of the area. Art historians usually refer to "Celtic art" from the La Tène period (roughly 500 BC to 1 BC) onward. This time is sometimes called "Early Celtic art," lasting in Britain until about 150 AD. The art of the Early Middle Ages in Britain and Ireland, such as the Book of Kells, is known as "Insular art" by historians. This style is widely recognized but only part of the broader Celtic art of the Early Middle Ages, which also includes Pictish art in Scotland.

Both styles of Celtic art were influenced by non-Celtic sources but often used geometric designs instead of detailed images. When figures appeared, they were usually stylized. Scenes showing stories were rare and only appeared under outside influence. Common features include energetic circular shapes, triskeles, and spirals. Much of the surviving art is made of precious metals, which may not represent all types of Celtic art. Exceptions include Pictish stones and Insular high crosses. Large stone sculptures with decoration are uncommon, though a few wooden statues, like the Warrior of Hirschlanden, might have been common.

The term "Celtic art" also includes the visual art of the Celtic Revival, which began in the 18th century and continued into modern times. This movement, mostly led by people in the British Isles, aimed to express pride in Celtic identity and nationalism. Its style became popular worldwide and is still seen today in forms like Celtic cross monuments and tattoos. This revival was inspired by earlier Celtic art, especially Insular art, and also influenced the Art Nouveau movement through late La Tène "vegetal" art.

Celtic art is typically decorative, avoiding straight lines and using symmetry only sometimes. It does not focus on imitating nature as classical art does. Instead, it uses complex symbols and patterns. It has drawn from other cultures in its use of knots, spirals, key patterns, lettering, animal shapes, plants, and human figures. As archaeologist Catherine Johns explained: "Across many centuries and regions, Celtic art shows a strong sense of balance in its patterns. Curved shapes are arranged so that filled areas and empty spaces work together harmoniously. Texturing and relief were used carefully to create intricate designs that fit even unusual shapes."

Background

The ancient people known as "Celts" spoke languages that shared a common origin in the Indo-European language called Common Celtic or Proto-Celtic. Scholars once believed this shared language meant these people had a common genetic background in southwest Europe and spread their culture through migration and invasion. Archaeologists found many cultural features, such as art styles, and linked them to earlier cultures like the Hallstatt and La Tène. Recent genetic studies show that different Celtic groups do not all share the same ancestry, suggesting that the culture spread without large movements of people. It is still unclear and debated how much Celtic language, culture, and genetics overlapped in ancient times.

Celtic art is connected to the people known as Celts, who spoke Celtic languages in Europe from ancient times to the present. It also includes the art of ancient groups whose language is unknown but who shared cultural and artistic similarities with Celtic speakers.

The word "Celt" was used in ancient times to describe the Gauls (called "Celtae" in Greek). The English term "Celt" first appeared in 1607. In the late 1600s, scholars like Edward Lhuyd studied links between Gaulish and the languages spoken by the Brythonic and Goidelic peoples, leading to the use of "Celt" for people in Britain and Ireland as well as Europe. In the 1700s, interest in "primitivism" — an idea that celebrated ancient, simple ways of life — sparked a fascination with Celtic and Druidic traditions. Later, after the Catholic Emancipation Act of 1829, the "Irish revival" aimed to highlight Irish identity. This movement later influenced similar efforts in other countries, becoming known as the "Celtic Revival."

Pre-Celtic periods

The earliest known culture often called Celtic, known as the Hallstatt culture (starting with "Hallstatt C"), appeared during the early European Iron Age, around 800 to 450 BC. However, the art from this time and later periods shows many similarities with earlier art from the same regions. This may suggest that Celtic culture developed through people learning from each other over time, rather than through large movements of people, as older theories once suggested. Megalithic art, found in many parts of the world, often includes similar designs like circles, spirals, and other curved shapes. In Europe, the most common remains from this time are large stone monuments. For example, the Neolithic Boyne Valley culture in Ireland left many rock drawings in areas that later became centers for Early Medieval Insular art, about 4,000 years later. Other regions, such as Brittany, also have connections to areas still considered Celtic today. Similarities can also be seen between Bronze Age jewelry in Ireland and Europe, such as gold lunulas and large collars, and Iron Age Celtic torcs, which were all elaborate neck ornaments. Additionally, the trumpet-shaped ends of Bronze Age Irish jewelry resemble designs used in later Celtic art.

Iron Age; Early Celtic art

During the Iron Age, the rural lifestyle of people in the modern "Celtic nations" differed from the culture of Continental Celts, who built many large, fortified settlements. These settlements were so big that the Romans called them "oppida." The leaders of these societies had great wealth and imported expensive items from other cultures, some of which were found in burial sites. The work of German scholar Paul Jacobsthal, who moved to Oxford, remains the foundation for studying art from this time, especially his book Early Celtic Art published in 1944.

The Halstatt culture created art with geometric patterns, such as straight lines and rectangles, rather than curves. These designs were often complex and filled every available space, resembling later Celtic styles. Linguists believe the Halstatt people spoke Celtic languages, but art historians usually avoid calling their art "Celtic."

As Halstatt society grew wealthier, it became connected to other cultures through trade, even though it was landlocked. Items from distant places, like Chinese silks, began to appear. A famous example is a Greek bronze wine-mixing vessel found in the Vix Grave in Burgundy, made in Magna Graecia (southern Italy) around 530 BC. This vessel could hold 1,100 liters. Another large Greek object, found in the Hochdorf Chieftain's Grave, had three lions on its rim, one of which was replaced by a Celtic artist who did not copy the Greek style of the others. Art from the Halstatt culture has been found as far as Ireland, but it was mixed with local styles.

Artworks often included animals and humans, especially in religious items. "Cult wagons," made of bronze, were large wheeled carts with groups of standing figures and a central bowl, likely for offerings to gods. These were found in graves. The figures were simple compared to those in southern cultures but still impressive. Some stone statues had a "leaf crown," two rounded projections behind the head, possibly a symbol of divinity.

Human heads, without bodies, were common, often carved in relief on objects. During the La Tène period, faces and bird heads appeared in abstract or plant-like decorations. Some designs changed when viewed from different angles. In full-body figures, the head was often oversized. Evidence suggests that the human head held special religious meaning for the Celts.

The most detailed stone carvings, including reliefs, were found in southern France at Roquepertuse and Entremont, near Greek-influenced areas. These sites may have been religious places where enemy heads or skulls were displayed. These carvings date to the 3rd century BC or earlier.

Few high-quality artifacts from this time have survived, especially compared to items from Mediterranean cultures. There is a clear difference between the rich, decorated objects of elites and the simpler tools used by most people. Many torcs and swords were found, including over 3,000 swords at a La Tène site, possibly used as offerings. Famous items like the Czech head, Hochdorf shoe plaques, and the Waterloo Helmet are unique and lack similar comparisons. Religious themes in art were rare, and the meaning of most decorations on practical objects is unclear. The purpose of non-functional artworks is also unknown.

La Tène style

Around 500 BC, a new artistic style called the La Tène style appeared in Switzerland and quickly spread across Europe. This style developed during a time of major changes in society, with important cultural centers moving toward the northwest. The richest examples of this style were found in northern France and western Germany, but over the next 300 years, it reached as far as Ireland, Italy, and modern Hungary. In some areas, the Celts were known for attacking others, but in other places, the spread of their culture may have happened with little or no movement of people. Early La Tène art combined designs from other cultures, such as Scythian, Greek, and Etruscan styles, into something unique. Around 500 BC, the Persian Achaemenid Empire controlled parts of Thrace and Macedonia, though the exact effect of this on the La Tène style is unclear. The La Tène style is known for its flowing, curvilinear designs, often inspired by plants, vines, and spirals.

Rich objects made of materials like gold and silver, which survive better than pottery, do not prove the Celts were only interested in fighting and feasting, as described by ancient writers. Instead, society was led by a warrior class, and many of the most impressive finds were ceremonial weapons, drinking vessels, or jewelry. However, the number of wealthy burials from the earlier Hallstatt period decreased, partly because people began cremating the dead instead of burying them.

A key symbol of status was the torc, a type of necklace worn by many people, with materials reflecting the wearer’s wealth. Bracelets and armlets were also common. While few human figures appear in La Tène art, some water sites have produced carved figures of body parts or whole people, likely used as offerings for healing. One such site in France uncovered over 10,000 fragments.

The La Tène style has several phases, named using numbers or letters. While experts agree on the order of these phases, the exact names and timing are debated. For example, the "early" phase featured recognizable foreign designs, while the "vegetal" phase used continuous, flowing patterns. After 300 BC, the style split into two types: "plastic" (with high-relief decoration) and "sword" (seen on scabbards). Some scholars have noted a "Disney style" with cartoon-like animal heads and a period of art from around 125–50 BC. Art from the British Isles, called "insular" style, is distinct from other regions.

Before the Romans conquered them, the Celts often used Roman, Greek, and other foreign styles to decorate their objects. For example, a torc from the Vix Grave had lion paws and winged horses, while a later British torc had more harmonious designs. The Gundestrup cauldron, a large silver object, has debated origins, possibly Thracian, and was found in Denmark. The Agris Helmet shows Mediterranean influences.

By the 3rd century BC, the Celts began making coins, copying Greek and Roman designs but later adding their own features, like exaggerated hair and stylized horses. A unique type of mirror found in southern Britain had a decorated back and a polished front. Each of the over 50 mirrors had a unique design.

Though Ireland is important in later Celtic art, few La Tène-style artifacts were found there. Some Hallstatt-style items appeared in Ireland before the La Tène style, which began appearing there between 350 and 150 BC. After the Roman Empire expanded, Ireland remained outside its borders but still absorbed influences from other cultures.

In Scotland and western Britain, where the Romans and later Anglo-Saxons had limited reach, the La Tène style continued to be used and evolved into the Insular style, which later helped create Christian art. In northern England and Scotland, many finds date after the Roman invasion. However, few La Tène-style items from the 3rd and 4th centuries were found in Ireland, a time of instability.

After the Romans conquered parts of Europe, some Celtic designs remained in popular art, especially in pottery made in Gaul, which was the largest producer in the Roman Empire. Some items combined Roman forms with La Tène-style decoration, like a hinged brass collar from the time of the Roman conquest. Britain also used enamel more than other parts of the Empire.

Early Middle Ages

Celtic art in the Middle Ages was created by people in Ireland and parts of Britain from the 5th century, when the Romans left Britain, until the 12th century, when Romanesque art became common. This style spread across Northern Europe through the Hiberno-Scottish mission.

In Ireland, Celtic traditions remained strong even before and during the Roman period, as the Romans never controlled the island. However, very few Irish objects from the Late Roman period show the La Tène style. From the 5th to 7th centuries, Irish art combined elements of the late Iron Age La Tène style with influences from the Romans and Romano-British people. When Christianity arrived, Irish art was shaped by Mediterranean and Germanic traditions, especially through contact with the Anglo-Saxons, creating the Insular or Hiberno-Saxon style. This style was most popular in the 8th and early 9th centuries but declined after Viking attacks. Later, Scandinavian influences appeared due to the Vikings and Norse-Gael groups. Original Celtic art ended with the Norman invasion in 1169–1170, when Romanesque art became widespread.

Between the 7th and 9th centuries, Irish missionaries traveled to Northumbria in Britain and brought their tradition of decorating manuscripts. These skills blended with Anglo-Saxon metalworking techniques in Northumbrian monasteries and were shared with Scotland and Ireland. This influenced art across England. Famous metalwork pieces include the Tara Brooch, the Ardagh Chalice, and the Derrynaflan Chalice. New techniques like filigree and chip carving were used, and designs such as interlace patterns and animal shapes appeared. The Book of Durrow was the first complete Insular Gospel Book, and by 700, the Hiberno-Saxon style was fully developed, as seen in the Lindisfarne Gospels. The Book of Kells, created in the late 8th century, is the most detailed Insular manuscript. Insular styles influenced art in Europe, including Carolingian, Romanesque, and Gothic styles.

In the 9th and 11th centuries, plain silver became common in Anglo-Saxon England, likely because of Viking trade. This period saw the creation of beautiful silver brooches in Ireland. Manuscript production declined, though this may not have been caused by the Vikings, as the decline began before their arrival. Sculpture, especially "high crosses" with carved biblical scenes, became popular. These reached their peak in the early 10th century, with examples like Muiredach's Cross and the Ahenny High Cross.

Viking influences on Irish art appeared in the late 11th century, when Irish metalwork began to resemble Scandinavian styles like Ringerike and Urnes. Examples include the Cross of Cong and the Shrine of Manchan. These styles were found not only in Dublin but also in rural areas, such as the Dorty Cross and crosses at the Rock of Cashel.

Some Insular manuscripts, like the 8th-century Lichfield Gospels and Hereford Gospels, may have been made in Wales. The 11th-century Ricemarch Psalter was definitely created in Wales and shows Viking influences.

Art from historic Dumnonia, now parts of Cornwall, Devon, Somerset, and Brittany, is less well known because these areas were later absorbed into England and France. However, archaeological finds, such as those at Cadbury Castle, Tintagel, and Ipplepen, suggest a sophisticated society with connections to the Byzantine Mediterranean and Atlantic regions. Stones like King Doniert's Stone and the Artognou stone show evidence of a diverse population speaking Brittonic and Latin, with some knowledge of Ogham script. Rare Breton and Cornish manuscripts, like the Bodmin manumissions, reflect the Insular style.

From the 5th to mid-9th centuries, Pictish art is mainly known through stone carvings and a few high-quality metal items. No illuminated manuscripts exist. The Picts lived in Scotland alongside Irish cultural influence on the west coast and the Anglo-Saxon kingdom of Northumbria. After Christianity spread, Insular styles influenced Pictish art, especially interlace patterns.

The Whitecleuch Chain, a heavy silver piece with Pictish symbols, is similar to a torc. These symbols also appear on plaques from the Norrie's Law hoard. The St Ninian's Isle Treasure, including silver brooches and bowls, is thought to be Pictish and dates to about 800 AD.

Pictish stones are divided into three classes by scholars. Class I stones are unshaped standing stones with symbols, animals, and daily objects like combs and mirrors. Symbols often appear in pairs, sometimes with a mirror or comb symbol, which may represent a woman. These stones are found in northeast Scotland. Examples include the Dunnichen and Aberlemno stones.

Class II stones are shaped cross-slabs with elaborate Insular-style decorations, including interlace and key-pattern designs. On the secondary face, Pictish symbols appear with scenes of people, animals, and battles. Examples include slabs from Dunfallandy and Meigle.

Class III stones follow the Pictish style but lack symbols. Most are cross-slabs, though some are recumbent stones with sockets for crosses.

Celtic revival

The revival of interest in Celtic visual art happened later than the revival of interest in Celtic literature. By the 1840s, copies of Celtic brooches and other metalwork became popular, starting in Dublin and later in Edinburgh, London, and other countries. Interest grew after the discovery of the Tara Brooch in 1850. This brooch was displayed in London and Paris for many years. In the late 19th century, large Celtic crosses were reintroduced for graves and memorials. This practice has lasted longer than other aspects of the revival and spread beyond areas with Celtic heritage. Interlace, a decorative pattern, is often seen on these crosses and was later used in American architecture around 1900 by architects like Louis Sullivan. It also appeared in stained glass and wall designs by Thomas A. O'Shaughnessy, both based in Chicago, which has a large Irish-American population. The "plastic style" of early Celtic art influenced the Art Nouveau decorative style, as seen in the work of designer Archibald Knox, a Manxman who created designs for Liberty & Co.

The Arts and Crafts Movement in Ireland adopted the Celtic style early but began to move away from it in the 1920s. Thomas Bodkin, the governor of the National Gallery of Ireland, wrote in 1921 that art worldwide had become more diverse over time. George Atkinson, writing about the same exhibition, noted that the society no longer supported overemphasizing Celtic designs at the expense of good overall design. The Celtic style had helped promote Irish identity, but later, it fell out of favor as new artistic trends emerged.

Interlace, often seen as a "Celtic" design, is actually also found in Germanic and Anglo-Saxon art. It remains a common motif in popular designs, especially in Celtic countries like Ireland, where it is a national style. In recent decades, interlace has appeared in tattoos and fantasy art with medieval themes. The animated film The Secret of Kells (2009) focuses on the creation of the Book of Kells and uses Insular design.

By the 1980s, a new Celtic Revival began, often called the Celtic Renaissance. This movement continued into the 21st century. By the 1990s, more artists, craftsmen, and designers were creating Celtic-themed jewelry and crafts. The Celtic Renaissance became a global movement, not limited to traditional Celtic countries.

In 2017, June 9 was named International Day of Celtic Art by a group of artists and enthusiasts. This day includes events like exhibitions, workshops, and gatherings. The first International Day of Celtic Art Conference was held in Andover, New York, from June 6 to 9, 2019, with participants from Scotland, Ireland, the United States, and Canada. The second conference took place at The Saint Patrick Centre in Downpatrick, Northern Ireland, from June 8 to 11, 2023. These conferences will continue every two years.