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. His sister Jennie Francis married judge Thomas Anthony Maitland McCarthy; their son Maitland Stewart McCarthy later served in the Canadian House of Commons. He died aged 65 in 1897.