Thayne is a town in Lincoln County, Wyoming, United States.

It sits in the northern portion of Wyoming's grassy Star Valley, close to the Salt River.

Thayne is surrounded by green grassland and ranches, with forested mountains at the valley's edge.

According to the United States Census Bureau, the town has a total area of 1.39 square miles (3.60 km2), all land.

Public education in the town of Thayne is provided by Lincoln County School District #2.