Wyoming Highway 331 (WYO 331) is a 9.92-mile-long (15.96 km) east-west Wyoming State Road located in central Sheridan County and links Beckton with Sheridan.

Wyoming Highway 331's western end is in the community of Beckton,[1] west of Sheridan, at Sheridan County Route 53 (Big Goose Canyon Road).

With the name Big Goose Canyon Road, it parallels Big Goose Creek to the north.

[2] For almost ten miles, between the outer limits of Sheridan and I-90 Business/US 14/US 87 (North Main Street) it is known as West Loucks Street.

[2][3] The entire route is in Sheridan County.