Austerlitz may refer to:

• Battle of Austerlitz, an 1805 victory by the French Grand Army of Napoleon Bonaparte

• Austerlitz, German name for Slavkov u Brna in the Czech Republic, which gave its name to the Battle of Austerlitz and is the namesake of other places
  • Austerlitz, Netherlands
  • Austerlitz, Kentucky, United States
  • Austerlitz, New York, United States
  • Austerlitz (Oscar, Louisiana), a plantation house listed on the NRHP in Louisiana, US
  • Gare d'Austerlitz, railway station in Paris, France

• Austerlitz (family), Jewish toponymic surname shared by several unrelated families
  • Fred Astaire (1899-1987), born Frederick Austerlitz
  • Robert Austerlitz (1923–1994), linguist, specialist in the Proto-Finno-Ugric language

• Austerlitz (1960 film) directed by Abel Gance
• Austerlitz (2016 film), a documentary film
• Austerlitz (novel) by W. G. Sebald, 2001
• "Austerlitz", a song by The Jezabels on the album Prisoner, 2011
• Austerlitz (video game), a turn-based strategy video game
• Austerlitz (wargame), a 1973 board wargame based on the battle
• "Austerlitz" (Succession), an episode of the television show Succession