Birney is a census-designated place (CDP) in Rosebud County, Montana, United States.

[3] The nearby town of Ashland was called Birney, the name of the postmaster, from 1881 to 1886.

[4] The Battle of Wolf Mountain was fought near present-day Birney in January 1877.

According to the United States Census Bureau, the CDP has a total area of 15.1 square miles (39 km2), all land.

20.7% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.

The Forsyth-based Independent Press covers news for all of Rosebud County, which includes Birney.