Seán Clancy (7 July 1901^[1] – 17 September 2006^[2]) was a veteran of Ireland's War of Independence. Clancy served in the war as a member of Irish Republican Army, and later as a commander of the Fifth Infantry Battalion in the Irish Defence Forces. He was a Lieutenant-Colonel at the time of his death.^[3]

He grew up on a farm in the parish of Bridgetown in East Clare. He married Agnes Creagh, from Castlebar, in 1926, and they had five children.^[1]

Clancy was a prominent participant in the Dublin Castle ceremony in which Britain handed power to the new Irish government.

Clancy was a Fine Gael supporter throughout his life, he received visits from Liam Cosgrave, John Bruton and Enda Kenny.

He died 17 September 2006, aged 105, after a short illness, at St Vincent's Hospital, Dublin. He is buried in Deans Grange Cemetery.^[1]