Johannes Carolus Bernardus (Jan) Sluijters, or Sluyters was a Dutch painter and co-founder of the Moderne Kunstkring.

Sluijters 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.

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.