| Office: | Teachta Dála |
| Term Start: | November 1974 |
| Term End: | 18 April 1979 |
| Term Start2: | June 1969 |
| Term End2: | February 1973 |
| Constituency2: | Cork North-East |
| Office3: | Senator |
| Term Start3: | 1 June 1973 |
| Term End3: | 13 November 1974 |
| Constituency3: | Administrative Panel |
| Office4: | Member of the European Parliament |
| Term Start4: | December 1977 |
| Term End4: | April 1979 |
| Constituency4: | Oireachtas Delegation |
| Birth Date: | 21 December 1916 |
| Birth Place: | Dingle, County Kerry, Ireland |
| Death Place: | County Cork, Ireland |
| Nationality: | Irish |
Seán Brosnan (21 December 1916 – 18 April 1979) was an Irish barrister and Fianna Fáil politician. He served for 10 years in the Oireachtas, as a Teachta Dála (TD) and as a senator.[1]
Brosnan was a native of Dingle, County Kerry. He was a prominent Gaelic footballer and won 3 All-Ireland medals with Kerry.[2] In 1939, he was captain of the team but could not play in the final due to influenza.
In 1933, he won an All-Ireland Minor Football Championship with Kerry. He won senior Kerry County Championship medals with Dingle GAA in 1938 and 1941. He left Dingle in the autumn of 1939.[3]
At the 1969 general election, Brosnan was elected to the 19th Dáil as a TD for Cork North-East. It was his second attempt – he had been defeated in 1965 – and he lost his seat at the 1973 general election. He was then elected to the 13th Seanad Éireann on the Administrative Panel, but he regained his Dáil seat in a by-election in November 1974 after the death of his Fianna Fáil colleague Liam Ahern.[4]
Brosnan was re-elected at the 1977 general election to the 21st Dáil, and also served as a Member of the European Parliament (MEP). MEPs were at that time appointed by national parliaments rather than being elected, and Brosnan was one of a 10-member delegation from the Oireachtas until the first direct elections in 1979.
After his death in 1979, the resulting by-election on 7 November was won for Fine Gael by Myra Barry.[4]