Phillips County Carnegie Library is a Carnegie library on the National Register of Historic Places located in Malta, Montana. It was added to the Register on August 27, 1980. For a time, it was used as a museum interpreting local history.
It was built of tan brick on a stone foundation in 1917. It is in plan, and has the words "Carnegie Library" carved in sandstone above its doorway.
The public library moved to a new location in May 1978, and the local historical society then planned to use this building as a museum.