Ahrendt is a German surname. Notable people with the surname include:
Bernd Ahrendt, German rower Christian Ahrendt (born 1963), German politician Lothar Ahrendt (born 1936), German politician Peter Ahrendt (1934–2013), German sailor
See also Angela Ahrendts (born 1960), US businesswoman Arent Arentsz (1585–1631), Dutch painter Ahrén Ahrend Ahrens Arend Arends Arent Arents