KSKJ, or Kranjsko slovenska katoliška jednota, is a Slovene fraternal organization in the United States, founded in 1894. It is headquartered in Joliet, Illinois. The English name of the society is the American Slovenian Catholic Union. Membership is open to all Catholic Slovenes. In 1979 it had 42,000 members in 130 lodges in 19 states.