The Chickasaw language (Chikashshanompaꞌ, Chickasaw pronunciation: [tʃikaʃːanompaʔ]) is a Native American language of the Muskogean family. It is agglutinative and follows the word order pattern of subject–object–verb (SOV). The language is closely related to, though perhaps not entirely mutually intelligible with, Choctaw. It is spoken by the Chickasaw tribe, now residing in Southeast Oklahoma, centered on Ada.
The language is currently spoken by around 50 people, mostly Chickasaw elders who grew up with the language. Due to boarding schools in the 20th century and Chickasaw removal from their homeland in the 19th century, the widespread knowledge about the language and culture amongst the nation has largely decreased.