Hallett is a town in Pawnee County, Oklahoma, United States.

A post office was established in the town on May 19, 1905, and the first newspaper, the weekly Hallett Herald was published.

[4] An explosion at the Aerlex Fireworks plant killed 21 people on June 25, 1985.

[4] According to the United States Census Bureau, the town has a total area of 0.9 square miles (2.3 km2), all land.

The racial makeup of the town was 79.17% White, 8.33% Native American, and 12.50% from two or more races.