Patrick J. Lenihan (4 September 1902 – 11 March 1970) was an Irish Fianna Fáil politician who served as a Teachta Dála (TD) for the Longford–Westmeath constituency from 1965 to 1970. He held the distinction of being the only parent to be elected to the Oireachtas where his child was already a member. Patrick Lenihan was the only member of his family to serve in the Dáil who was not appointed a Minister at some stage in his career.