
Johannes Carolus Bernardus (Jan) Sluijters, or Sluyters (17 December 1881 in 's-Hertogenbosch – 8 May 1957 in Amsterdam) was a Dutch painter and co-founder of the Moderne Kunstkring.
Sluijters (in English often spelled "Sluyters") was a leading pioneer of various Post-Impressionist movements in the Netherlands. He experimented with several styles, including Fauvism and Cubism, finally settling on a colorful expressionism. His paintings feature nude studies, portraits, landscapes, and still lifes. His work was part of the painting event in the art competition at the 1928 Summer Olympics. He painted twelve portraits of Tonia Stieltjes in his lifetime.
A number of streets are named after him in the Netherlands, including one in the neighborhood of streets named after 19th and 20th century Dutch painters in Overtoomse Veld-Noord, Amsterdam.

Among the public collections holding works by Jan Sluyters are: