Kosmin or Kośmin may refer to:Kośmin, Lublin Voivodeship, a village in eastern Poland in Puławy County Kośmin, Masovian Voivodeship a village in east-central Poland in Grójec County Paul J. Kosmin, a historian who studies the Seleucid Empire Barry Kosmin, a professor of public policy and scholar of religion & culture, specifically groups unattached organisations only loosely attached to religion