Thomas James Keinhorst (born 14 July 1990) is a German international rugby league footballer who plays as a centre or second-row forward for Keighley Cougars in the RFL Championship, on DR loan from Hull Kingston Rovers in the Betfred Super League.
In October 2018, Keinhorst signed a three-year deal with Hull Kingston Rovers. Keinhorst made his first competitive appearance for Hull Kingston Rovers in round 1 of the 2019 Super League season, Keinhorst scored a dramatic try in the final six seconds of the match on his début, going onto record a thrilling 18-16 victory over cross-city rivals Hull F.C. at Craven Park.