Koenen
Koenen is a patronymic surname of Low German or Dutch origin derived from the given name Koen.
Notable people with the surname include:
- Adolf von Koenen, German geologist
- Bernard Koenen, Communist and East German politician
- Breanna Koenen, Australian rules footballer
- Emmy Damerius-Koenen, East German politician
- Gerd Koenen, German historian and former communist
- Heinrich Koenen, German anti-fascist fighter and Soviet agent
- , Dutch neurologist who described Koenen's tumor
- Karestan Koenen, American epidemiologist
- , German-born American philologist and papyrologist
- Lyle Koenen, American politician in Minnesota
- , German civil engineer
- Michael Koenen, American football player
- Theo Koenen, German footballer
- Vera Koenen, Dutch volleyball player
- Wilhelm Koenen, Communist and East German politician
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