Koopmans
Koopmans is a Dutch occupational surname meaning "merchant's". Notable people with the surname include:
- Aart Koopmans, Dutch businessman
- Ger Koopmans, Dutch CDA politician
- Leo Koopmans, Dutch ice hockey player
- Luuk Koopmans, Dutch football goalkeeper
- Marion Koopmans, Dutch virologist
- Rachel Koopmans, Canadian historian
- Rudy Koopmans, Dutch boxer
- Ruud Koopmans, Dutch sociologist
- Thijmen Koopmans, Dutch judge
- Tini Koopmans, Dutch high jumper, discus thrower and shot putter
- Tjalling Koopmans, Dutch American mathematician, physicist and economist and Nobel Laureate
- * Koopmans' theorem, a quantum chemistry theorem published by Tjalling Koopmans
