John Gargan (8 November 1918 – 1991) was an Irish hurler who played as a left wing-forward for the Kilkenny and Dublin senior teams. Gargan made his first appearance for the Kilkenny team during the 1939 championship and was a regular on the inter-county scene until his retirement from Dublin after the 1947 championship. During that time he won one All-Ireland medal and four Leinster medals. At club level Gargan enjoyed successful spells with Éire Óg and Faughs.