Crab Orchard is a home rule-class city in Lincoln County, Kentucky, United States.

Crab Orchard was near the end of the Logan Trace of the Wilderness Road and was an early pioneer station.

U.S. Route 150 passes around the southern and western edges of the city, leading northwest 11 miles (18 km) to Stanford, the county seat, and southeast 13 miles (21 km) to Mount Vernon.

Kentucky Route 39 passes through Crab Orchard as Main Street, leading north 12 miles (19 km) to Lancaster and south 28 miles (45 km) to Somerset.

36.2% of all households were made up of individuals, and 21.7% had someone living alone who was 65 years of age or older.