Heptameter is a type of meter in which each line of poetry has seven metrical feet. It was often used in ancient poetry rules. In English, this meter was commonly found in storytelling poems starting with the Romantics. The meter is also called septenary, and it was the most common form for medieval Latin and everyday language poetry, including the Ormulum. Its first use in English may have been in the Poema Morale from the 12th or 13th century.

Examples can be found in works by Lord Byron, Edgar Allan Poe, and Robert W. Service.