Wyoming Highway 240 is a state road that in Lincoln County, Wyoming that connects US 30 and US 189 in the southeastern end of the county.
Wyoming Highway 240 is a north-south highway that runs from US 30 in Opal north 12.28 miles (19.76 km) to a north end at US 189 located approximately 21 miles (34 km) northeast of Kemmerer. WYO 240 Acts as a bypass for travelers connecting from US 30 west to US 189 north. 
The entire route is in Lincoln County.
- Official 2003 State Highway Map of Wyoming