Deaver is a town in Big Horn County, Wyoming, United States.

According to the United States Census Bureau, the town has a total area of 1.01 square miles (2.62 km2), all land.

There were 84 housing units at an average density of 83.2 per square mile (32.1/km2).

18.2% of all households were made up of individuals, and 3% had someone living alone who was 65 years of age or older.

26.2% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older.

About 14.0% of families and 10.4% of the population were below the poverty line, including 6.3% of those under the age of eighteen and none of those 65 or over.

Public education in Deaver is provided by Big Horn County School District Number 1.