Eoin Rheinisch (born 21 February 1980 in Dublin) is an Irish slalom canoeist and three-time Olympic competitor.
He competed at the international level from 1996 to 2013.From Leixlip, County Kildare, he is also noted for his involvement in Gaelic games, having been appointed in 2009 to assist in physical preparations with the Westmeath senior football team.