George Longley (April 1787 – 1842) was an English-born businessman, farmer and political figure in Upper Canada.
He represented Grenville in the Legislative Assembly of Upper Canada from 1829 to 1830 as a Reformer.
He was the son of William Langley and Sarah Scott and came to Lower Canada around 1812.
Longley also became the primary owner of a grist mill, producing flour for export.
He died at sea while travelling from Quebec to London and was buried in the parish of Milton-next-Gravesend in August 1842.