John Stewart (1 October 1810 – 30 July 1896) was an English-born Australian politician.
He was born in Northumberland to estate agent Malcolm Stewart and Elizabeth Scott.
He graduated from the Royal Veterinary College at Edinburgh in 1827 and was a professor at the Andersonian University in Glasgow from 1834 to 1840.
He moved back to Sydney in 1866, when he was elected to the New South Wales Legislative Assembly for Illawarra.
He left the Legislative Council in 1895 and died at Summer Hill the following year.