Jos Lammertink (28 March 1958 – 24 November 2024) was a Dutch road bicycle racer.

He won the Dutch title in the men's road race in 1986.

That same year he was involved in a crash during stage four of the Tour de France that forced him to abandon, suffering from a fracture on his left front skull.

Lammertink died from respiratory failure on 24 November 2024, at the age of 66.

This biographical article related to Dutch cycling is a stub.