Wikipedia
Theisen
Theisen is a surname. Notable people with the surname include:
- Brianne Theisen (born 1988), Canadian heptathlete and women's pentathlete
- Joseph M. Theisen (1877-1946), American politician
- Paul Theisen (born 1922), Danish fencer
- Roger Theisen (born 1932), Luxembourgian fencer
- William Theisen, American restaurant entrepreneur