Gerrit Fischer (28 August 1916 – 22 November 1984) was a Dutch footballer who played for Ajax as a right winger.

Fischer was discovered at a school football match at the age of sixteen, by Ajax coach Jack Reynolds, after which he joined the youth ranks of the Amsterdam club.

He made his debut for the first team at the age of eighteen in a home match against Xerxes on 16 September 1934.

Between 1936 and 1938, he had temporarily lost his starting position to Jan Stam, but throughout his career he always remained of great value to the club.

In total Fischer played in 240 matches for Ajax, scoring 97 goals.