Ken McGrath (born 20 February 1978) is an Irish hurler and hurling selector who played as a centre-back for the Waterford senior team. He joined the team in 1996 and was a regular member of the starting fifteen until his retirement in 2011. Son of former hurler Pat and older brother of former player Eoin, McGrath was a stalwart on the Waterford team for more than a decade. He has won four Munster winners' medals, one National League winners' medal and three All-Star awards. He ended up as an All-Ireland runner-up on one occasion.