| Mahnomen County Courthouse | |
| Nrhp Type: | nrhp |
| Coordinates: | 47.3178°N -95.9694°W |
| Location: | 311 North Main Street, Mahnomen |
| Area: | Less than one acre |
| Built: | 1909 |
| Architect: | Kinney and Halden of Minneapolis[1] |
| Architecture: | Classical Revival |
| Refnum: | 84001488 |
| Added: | February 16, 1984 |
The Mahnomen County Courthouse is a Classical Revival brick building at 311 North Main Street in Mahnomen, Minnesota, United States. It was completed in 1909 at a cost of $10,000.[2]
It was still a functioning courthouse when it was added to the National Register of Historic Places in 1984.[3]