| Office: | Senator |
| Term Start: | 14 December 1961 |
| Term End: | 1 November 1989 |
| Constituency: | Agricultural Panel |
| Birth Date: | 21 September 1921 |
| Birth Place: | County Tipperary, Ireland |
| Death Place: | County Tipperary, Ireland |
| Party: | Fianna Fáil |
William Ryan (21 September 1921 – 2 January 1994) was an Irish Fianna Fáil politician from County Tipperary. He was a senator from 1961 to 1989.[1]
Born in Kilfeacle, County Tipperary,[1] Ryan was elected in 1961 to the 10th Seanad on the Agricultural Panel. He was re-elected eight times, until he stood down at the 1989 election to the 19th Seanad.
Ryan also stood as a Fianna Fáil candidate for Dáil Éireann in the Tipperary South constituency at three successive general elections: 1965, 1969, 1973. He was unsuccessful on each occasion.[2]