Ivan Shamiakin (Belarusian: Іван Пятровіч Шамякін), born on January 30, 1921, and died on October 14, 2004, was a Soviet Belarusian writer who wrote many books during the time of the Belarusian Soviet Socialist Republic (BSSR). He wrote in a style known as socialist realism.

He was born in the village of Karma, Gomel Region, Belarus. In 1940, he studied construction engineering at a vocational school. Later, he fought in World War II, participating in battles near Murmansk and in Poland. After the war, he studied at the Homel Pedagogical University. He worked as an editor and held positions in the Communist Party in Belarus. In 1958, Shamiakin joined other Belarusian writers in a campaign against Boris Pasternak. In 1991, he admitted he had never read Pasternak’s book Doctor Zhivago and said he followed the actions of older members of the Communist Party. He also mentioned Pasternak’s "typically Jewish cowardice."

In 1963, Shamiakin worked for the United Nations as part of the Belarusian delegation. In 1980, he became the chief editor of the Byelorussian Soviet Encyclopedia and held this role until 1992. In 1994, he became a member of the National Academy of Sciences.