Carl Petersen
Carl Petersen may refer to:
- Carl Wilhelm Petersen, German politician and first mayor of Hamburg
- Carl Petersen (athlete), Danish Olympic athlete
- Carl Emil Petersen, American Medal of Honor recipient
- Carl Petersén (army officer), Swedish military officer
- Carl Wilhelm Petersén, Swedish curler
- Carl Petersen (Danish politician), Danish politician of the Social Democratic Party
- Carl Petersen (neuroscientist), Denmark-born Swiss neuroscientist at EPFL
- Carl Friedrich Petersen, Hamburg lawyer and politician
- Carl Petersen (architect), Danish architect of the Nordic Classicism movement
- Sandy Petersen, American programmer