Pierre Legras Pierreville (1738 – July 22, 1810) was a businessman, seigneur and political figure in Lower Canada.
He was born Pierre Legras at Montreal in 1738, the son of a merchant there.
He became a merchant at Saint-François-du-Lac.
He inherited the seigneury of Pierreville from his father in 1768, added Pierreville to his name and soon afterwards settled at Boucherville.