The Stewart baronetcy, of Athenree in the County of Tyrone, was created in the Baronetage of the United Kingdom on 21 June 1803 for John Stewart. He was Attorney-General for Ireland from 1799 to 1803 and represented County Tyrone in the British House of Commons. The second Baronet also sat as Member of Parliament for County Tyrone. The sixth Baronet was Deputy Lieutenant of County Tyrone in 1971.