John Mannion (4 June 1907 – 10 September 1978) was an Irish Fine Gael politician from Clifden, County Galway.
A farmer before entering politics, Mannion was elected to Dáil Éireann for the Galway West constituency on his first attempt, at the 1951 general election.
He lost the seat at the 1954 general election, and although he stood again at the 1957, 1965 and 1969 general elections, he never returned to the Dáil.
[2] After his 1954 defeat, he was elected to the 8th Seanad by the Agricultural Panel.
[1] His son, John Mannion Jnr, succeeded him in the Seanad, and also served one term as a TD.