Kevin Roantree O'Shiel (1891 – 1970) was an Irish politician and civil servant. Born in Omagh, O'Shiel studied at Mount St Mary's College in Derbyshire, then at Trinity College Dublin and the King's Inns. He qualified as a barrister in 1913, but devoted much of his time to championing Irish Home Rule. He was a member of the Irish Volunteers, but did not take part in the Easter Rising, as he believed that Catholicism was incompatible with taking secret oaths, which would have been necessary to join any of the participating groups. Instead, in 1916, O'Shiel joined the Irish Anti-Partition League, and the following year became a member of Sinn Féin.