This is a list of free corps (German: Freikorps), various military and/or paramilitary units raised from the civilian population.

Habsburg monarchy

• Freikorps, pre-1754 German units
• Serbian Free Corps (1787–1792)
• Patriot militias, called Free Corps, in Austrian Netherlands

Prussia

• Freiwilliges Feldjäger-Korps von Schmidt (1813–14), a volunteer riflemen corps that formed in late 1813
• Lützow Free Corps (1813–14), a voluntary force of the Prussian Army during the Napoleonic Wars

World War II

• British Free Corps (BFC; German: Britisches Freikorps), in the Waffen-SS World War II
• Sudetendeutsches Freikorps, was a paramilitary fifth-columnist organisation formed by Czech German nationalists with Nazi sympathies
• Free Corps Denmark (1941–1943), Danish volunteer free corps created by the Danish Nazi Party (DNSAP)

Other

• Exercitiegenootschap, military organisation in the 18th century Netherlands
• Schutterij, a voluntary city guard or citizen militia in the medieval and early modern Netherlands
• Munckska kåren, was a Swedish secret paramilitary group

Fictional

• In Shannara series of novels written by Terry Brooks, the Free Corps is a unit of the Border Legion of Callahorn and was led by Stee Jans; it appeared in The Elfstones of Shannara, helping to defend the Ellcrys against the Demons.