Orange County is the name of several counties in the United States of America.
- Orange County, California
- Orange County, Florida
- Orange County, Indiana
- Orange County, New York
- Orange County, North Carolina
- Orange County, Texas
- Orange County, Vermont
- Orange County, Virginia
Orange County can also refer to:
- Orange County (film), 2002 movie set in Orange County, California starring Jack Black and Colin Hanks
- Orange County, China, American-style suburb near Beijing
- John Wayne Airport, located in Orange County, California and formerly known as Orange County Airport
- The O.C., television show named after Orange County, California.
- Orange County Choppers, a motorcycle customization business located in Orange County, New York and featured on the television series American Choppers
