Falkner Cornwall Stewart (August 21, 1833 – April 27, 1897) was an Ontario merchant and political figure.
He represented Dufferin in the Legislative Assembly of Ontario as a Conservative member from 1886 to 1890.
Stewart worked as a clerk in a store in Barrie and then in Toronto, before opening his own business in Cookstown.
He served as the first reeve of Orangeville and as warden for Dufferin County in 1879 and 1881.
His sister Jennie Francis married judge Thomas Anthony Maitland McCarthy; their son Maitland Stewart McCarthy later served in the Canadian House of Commons.