Keith Andrew Senior (born 24 April 1976) is an English former professional rugby league footballer who played for the Sheffield Eagles and the Leeds Rhinos in the Super League.
A Great Britain and England international representative centre, he is considered one of the greatest players of the Super League era.
During his career he won every honour in the British domestic game and held the record for the most Super League appearances (413) & the record for the most Super League tries (199), until overtaken by Paul Wellens, and his former Leeds Rhinos team mate Danny McGuire respectively in 2012.
He represented both Great Britain and England at international level, and was named in the 'Rugby League World XIII' on three occasions.