Cyril Tait O'Callaghan (9 September 1889 — 6 April 1984) was an Irish international rugby union player.
Born in Carlow, O'Callaghan was a wing three-quarter and played for Old Merchant Taylors, an English club.
[1] O'Callaghan served as an officer with the 1st The Royal Dragoons, into which he was commissioned as a second lieutenant in November 1915,[2] and was awarded the Military Cross in January 1919.
[6] He was promoted to lieutenant colonel in the Reserve of Officers of the Territorial Army's North Somerset Yeomanry.
[7] O'Callaghan married an American from Boston after retiring from active service.