Johannes Gerardus Nicolaas Venneker (born 5 March 1945) is a Dutch former footballer who played as a forward.

Venneker is the only Feyenoord player to have scored five goals in a match against De Klassieker rivals Ajax Amsterdam.

[2] On 29 November 1964, aged 19, he scored five goals in Feijenoord's 9–4 win in De Klassieker against Ajax Amsterdam.

[3] Following a move to NEC Nijmegen Venneker spent seven years at Sparta Rotterdam.

[2] In January 2015 it was announced he would take up the role of technical advisor at lower-league club VV Nieuwenhoorn for the 2015–16 season.