Lt.-Col. Richard Magenis (c. 1763 – 6 March 1831) was an Anglo-Irish Unionist politician who sat in the Irish House of Commons and British House of Commons for Enniskillen. Magenis represented Enniskillen in the Irish Parliament from 1790 to 1797. Following the Union of Great Britain and Ireland in 1801, he represented Enniskillen as a Tory from 26 October 1812 to 29 January 1828. He was a Lieutenant-Colonel in the Fermanagh Militia.