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. Brosnan was a native of Dingle, County Kerry. He was a prominent Gaelic footballer and won 3 All-Ireland medals with Kerry. 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.