Wyoming Highway 433 (WYO 433) is an 18.81-mile-long (30.27 km) Wyoming state road in Washakie and Big Horn counties.

Wyoming Highway 433 begins its southern end at US 20/WYO 789 on the west side of Worland in Washakie County.

Here WYO 433 passes through a lightly built up section of Worland before crossing the Bighorn Canal and entering a more rural landscape which dominates for the remainder of its routing.

[2] Highway 433 travels north along the west side of the Bighorn River, closely following the Bighorn canal, and reaches the community (CDP) of West River at approximately 6 miles.

Highway 433 also parallels US 16/US 20/WYO 789 that runs along the east side of the Bighorn River and acts as an alternate to that routing north to Manderson where it meets up with those routes.