Alfons Groenendijk (Dutch pronunciation: [ˈɑlfɔns ˈxrunə(n)dɛik];[a] born 17 May 1964) is a Dutch former professional footballer and current assistant coach of Antalyaspor.

During his career, Groenendijk played for ADO Den Haag, Roda JC, Ajax, Manchester City, Sparta Rotterdam and Utrecht.

Groenendijk was appointed assistant manager of Willem II for the 2008–09 season.

He was previously a manager of Jong Ajax and the amateur side VV Katwijk.

This biographical article related to association football in the Netherlands, about a midfielder, is a stub.