There are several people and things named Joliet:
- Louis Jolliet, a 17th century explorer of North America
- Joliet, Illinois, United States, a city named after Louis Jolliet
- Joliet Prison
- Joliet, Montana, United States
- Joliet Township, Platte County, Nebraska
- Joliet (file system), an extension to the ISO 9660 specification, written by Microsoft
- "Joliet" Jake Blues (John Belushi), member of the Blues Brothers band