- a member of a group of people with an enduring cultural tradition whose French Catholic ancestors established permanent communities in Louisiana and Maine after being expelled from Acadia in the late 18th century.
- the French dialect of the Cajuns.
- of, relating to, or characteristic of Cajuns, especially those of Louisiana: Cajun cooking.
- a native of Louisiana descended from 18th-century Acadian immigrants
- the dialect of French spoken by such people
- the music of this ethnic group, combining blues and European folk music
- denoting, relating to, or characteristic of such people, their language, or their music