Patrick J. Teehan (14 April 1904 – 25 December 1985) was an Irish Fianna Fáil politician, auctioneer and farmer. He was elected to Seanad Éireann on the Administrative Panel at the 1951 election, and was re-elected to the Seanad in 1954 and 1957. He was elected to Dáil Éireann as a Fianna Fáil Teachta Dála (TD) for the Carlow–Kilkenny constituency at the 1960 by-election caused by the death of Joseph Hughes of Fine Gael. He lost his Dáil seat at the 1961 general election. He was again elected to the Seanad on the Administrative Panel at the 1965 election but lost his Seanad seat at the 1969 election.