Guillaume Cheval dit St-Jacques (April 17, 1828 - April 29, 1880) was a Quebec businessman and political figure. He represented Rouville in the House of Commons of Canada as a Liberal member from 1867 to 1872 and from 1874 to 1878.
He was born in Beloeil, Lower Canada in 1828, the son of Louis Cheval dit St-Jacques and Rosalie Cherrier (cousin of Louis-Joseph Papineau) [1] and educated at Saint-Denis. He served as mayor of Saint-Hilaire for four years.[2] In 1852, he married Hermélimbe Richer. He died in Saint-Hilaire at the age of 52.[1]