Heymans is a surname. Notable people with the surname include:
Adriaan Jozef Heymans, Belgian painter Catherine Heymans, British astrophysicist and Astronomer Royal for Scotland Cédric Heymans, French rugby player Corneille Heymans (1892–1968), Belgian physiologist Heymans (crater), a lunar impact crater, named after him Émilie Heymans, Canadian diver (born in Belgium) Gerardus Heymans (1857–1930), Dutch philosopher & psychologist Jonas Heymans, Belgian footballer Margriet Heymans, Dutch writer and illustrator of children's literature Mau Heymans, Dutch artist and writer, known for his work on Disney comics
See also Chayyim, the basis for this name Heyman Hijmans