Koopman

Koopman is a Dutch occupational surname that means "merchant".¹ The spelling Coopman is more common in West Flanders.² Notable people with the surname include:

Bernard Koopman (1900–1981), French-born American mathematician
- known for a.o.: Koopman operator, Koopman–von Neumann classical mechanics, Pitman-Koopman theorem
Bertha Koopman (married name Bertha Frensel Wegener; 1874–1953), Dutch composer and music educator
Bram Koopman (1917–2008), Dutch Labour Party politician
Elias Bernard Koopman (1860–1929), founder of the American Mutoscope and Biograph Company
Elisabeth Koopman (1647–1693), German astronomer with Dutch parents, wife of Johannes Hevelius
- 12625 Koopman, a Main Belt asteroid named after her
Gionne Koopman (born 1991), South African cricketer
Hilda Koopman (born 1947), Dutch-American linguist
Jan Coenraad Koopman (1790–1855), Dutch vice-admiral
Karl Koopman (1920–1997), American zoologist
- Koopman's anole, Koopman's mountain mouse, Koopman's Pipistrelle and Koopman's rat are named for him
Martin Koopman (born 1956), Dutch football defender and manager
Ody Koopman (1902–1949), Dutch tennis player, brother of Toto
Peggy Koopman-Boyden (1943–2025), New Zealand gerontologist
Pim Koopman (1953–2009), Dutch musician and member of Kayak
Rinse Koopman (1770–1826), Dutch Mennonite teacher and minister
Roger Koopman, American politician
Ton Koopman (born 1944), Dutch conductor, organist and harpsichordist
Toto Koopman (1908–1991), Dutch model and anti-fascist spy during World War II, sister of Ody
Willi Koopman (born 1944), Dutch actress

Coopman