Pyotr Mikhailovich Shamshin (Russian: Пётр Михайлович Шамшин; (10 January 1811, Saint Petersburg – 6 February 1895, Saint Petersburg)[1] was a Russian painter of historical and religious scenes in the Academic style.

His father, Mikhail Nikitich Shamshin [ru], was a painter who taught at the Imperial Academy of Arts.

[2] At the age of ten, he entered the primary school at the Academy and studied with Pyotr Basin.

In 1836, he was awarded a large gold medal for his depiction of the massacre of Niobe's children by Artemis and Apollo.

He also painted for smaller churches throughout Russia, but some of those works were lost or destroyed during the early Soviet period.