Ahrén is an Old Swedish surname. Notable people with the surname include:
Nils Ahrén (1877–1928), Swedish silent film actor Per-Olov Ahrén (1926–2004), Swedish clergyman Uno Åhrén (1897–1977), Swedish architect and city planner
See also Angela Ahrendts (born 1960), US businesswoman Arent Arentsz (1585–1631), Dutch painter Ahrend Ahrendt Ahrens Arend Arends Arent Arents