The Deer Lodge Central Business Historic District, in Deer Lodge, Montana, in Powell County, Montana, is a historic district which was listed on the National Register of Historic Places in 2008.

The 13 acres (5.3 ha) district includes three blocks on both sides of Deer Lodge's Main Street between Cottonwood Ave. to the north and Montana Ave. to the south, and the closer sides of two blocks of 2nd St. and 4th St. (Main St. is effectively 3rd St.) This includes 61 main buildings, of which 46 are contributing buildings, and three auxiliary buildings.

[2] It includes the Rialto Theater (1921), at 418 Main Street, which was separately listed on the National Register in 1998.

[2] Buildings in the district includes some Early Western Commercial works, built before approximately 1884.

These are single-story, wood-frame or brick, with a tall, false-front covering a gabled roof extending behind it, some of them being free-standing (in contrast to most other buildings in the district which share adjoining walls).