| Official Name: | Long Siding, Minnesota |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Minnesota#USA |
| Pushpin Label: | Long Siding |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Minnesota |
| Subdivision Type2: | County |
| Subdivision Name2: | Mille Lacs |
| Subdivision Type3: | Township |
| Subdivision Name3: | Princeton |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 45.6244°N -93.6158°W |
| Area Code: | 320 |
Long Siding is an unincorporated community in Mille Lacs County, in the U.S. state of Minnesota.[1]
A post office called Long Siding was established in 1903, and remained in operation until 1954.[2] The community was named for Edgar C. Long, a businessperson in the lumber industry.[3]