John Tennyson (born 6 February 1985) is an Irish hurler who played as a centre-back for the Kilkenny senior team. Born in County Kilkenny, Tennyson first excelled at hurling whilst at school in St. Kieran's College. He arrived on the inter-county scene at the age of seventeen when he first linked up with the Kilkenny minor team, before later lining out with the under-21 and intermediate sides. He made his senior debut during the 2005 championship.