Wyoming Highway 73 (WYO 73) is a 4.64-mile (7.47 km) long east–west Wyoming state highway that runs from northwestern Carbon County to northeastern Sweetwater County. Highway 73 provides access to the town of Bairoil.

Wyoming Highway 73 begins its west end at the city limits for Bairoil, in Sweetwater County, just east of an intersection with Bairoil Dr. From there Highway 73 travels east into Carbon County and terminates at U.S. Route 287 and Highway 789 in Lamont.

County	Location	mi	km	Destinations	Notes
Sweetwater	Bairoil	0.00	0.00	Antelope Drive	Western terminus
Carbon	Lamont	4.64	7.47	US 287 / WYO 789	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• Wyoming Routes 000-099
• WYO 73 - US 287/WYO 789 to Bairoil