Magens is a surname. Notable people with this surname include:
Joachim Melchior Magens (1715–1783), Danish colonial administrator and planter Joachim Melchior Magens (1775–1845), Danish jurist Magens Dorrien Magens (ca 1762–1849), English banker and politician Nicholas Magens (1697 or 1704–1764), attorney and merchant from Holstein
See also Magen Magens Bay, US Virgin Islands