Markus Keller
Markus Keller is the name of the following people:
- Markus Keller (theater manager) (* 1947), Swiss theater manager, director and author
- Markus Keller (triathlete) (* 1967), Swiss triathlete
- Markus Keller (snowboarder) (* 1982), Swiss snowboarder
- Markus Keller (ice hockey player) (* 1989), German ice hockey goalkeeper