December 11th Holidays: Celebrations and Observances Worldwide

December 11th is a day filled with various holidays, celebrations, observances, and historical significance around the world. From international events to national holidays and religious commemorations and saints, this date holds special meaning for many cultures and communities. Explore the list of holidays, observances and saints celebrated on December 11th.

Holidays on December 11th

  • USA - Admission day for Indiana (19th state, 1816)
  • Burkina Faso - Republic Day (1958, Upper Volta became an autonomous republic in the French Community.)
  • Argentina - Tango Day, Buenos Aires
  • Also see December 11 (Eastern Orthodox liturgics)
  • Roman festivals - One of the four Agonalia, this day in honour of Sol Indiges; also the Septimontium festival
  • R.C. Saints - pope Damasus I: optional memorial; also Daniel the Stylite (not universal)

Observances on December 11th

  • International Mountain Day