Wyoming Highway 336 (WYO 336) is a 11.52-mile-long (18.54 km) east-west Wyoming State Road located in central Sheridan County that serves Sheridan and areas east thereof.

[2][3] Highway 336 proceeds eastward as Fifth Street and has an interchange with exit 23 of Interstate 90, at just under 1 mile, which at this point also carries US 14 and US 87.

Past the interstate WYO 336 turns northeasterly and changes names to Wyarno Road for the easterly community it serves.

[2] The highway then gently turns southeasterly and reaches the unincorporated community of Wyarno at approximately 10.2 miles.

[3] Beyond Wyarno, Highway 336 reaches its eastern end at Sheridan County Route 42 (Ulm Road) at 11.52 miles.