Marcussen is a surname. Notable people with the surname include:
Hanna Elise Marcussen, Norwegian politicianIda Marcussen, Norwegian heptathleteJan Marcussen, American Seventh-day Adventist and former ministerJens Marcussen, Norwegian politicianJørgen Marcussen, Danish racing cyclistPeder Marcussen, Danish gymnastSigurd Marcussen, Norwegian politicianStephen Marcussen, chief mastering engineerPaul Marcussen, Norwegian financial analyst