Pierre Chasselat (1753–1814) was a French miniature painter and a pupil of Vien. He exhibited watercolour drawings and miniatures from 1793 to 1810. He was born and died in Paris.

He was the father of the painter Charles Abraham Chasselat, and grandfather of Henri Jean Saint-Ange Chasselat, also a painter.

•  This article incorporates text from a publication now in the public domain: Bryan, Michael (1886). "Chasselat, Pierre". In Graves, Robert Edmund (ed.). Bryan's Dictionary of Painters and Engravers (A–K). Vol. I (3rd ed.). London: George Bell & Sons.

• Maev Kennedy. "Huge testicular tumour helps identify subject of 19th century portrait", The Guardian, 24 May 2011.