| Office: | Teachta Dála |
| Term Start: | June 1969 |
| Term End: | February 1973 |
| Constituency: | Mayo West |
| Term Start1: | October 1961 |
| Term End1: | April 1965 |
| Constituency1: | Mayo North |
| Office2: | Senator |
| Term Start2: | 23 June 1965 |
| Term End2: | 18 June 1969 |
| Constituency2: | Nominated by the Taoiseach |
| Birth Place: | County Mayo, Ireland |
| Death Place: | County Mayo, Ireland |
Joseph R. Lenehan (1916 – 6 December 1981) was an Irish politician and publican. Lenehan first stood for election as a Fine Gael candidate at the 1944 general election but was not elected. He was also an unsuccessful candidate at the 1951 general election.
He was elected to Dáil Éireann as an independent Teachta Dála (TD) for the Mayo North constituency at the 1961 general election.[1] He lost his seat at the 1965 general election but was subsequently nominated by the Taoiseach to the 11th Seanad. He was elected as a Fianna Fáil TD for the Mayo West constituency at the 1969 general election. He lost his seat at the 1973 general election.[2]