Joseph Francis Stewart (1889 – 6 May 1964) was an Irish nationalist politician. After growing up in Dungannon, where he studied at the Christian Brothers' School, Stewart worked as a wine merchant and became active in the Irish Parliamentary Party. At the January 1910 general election he worked as the election agent for Thomas Kettle. At the 1929 general election Stewart was elected to Stormont for the seat of East Tyrone, which he held until his death in 1964. In 1958 Stewart became the Chairman of the Nationalist Party at Stormont, a position he retained until his death.