| Official Name: | Gilman, Montana |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Montana#USA |
| Pushpin Label: | Gilman |
| Coordinates: | 47.5117°N -112.36°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Montana |
| Subdivision Type2: | County |
| Subdivision Name2: | Lewis and Clark |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 0.65 |
| Area Land Sq Mi: | 0.65 |
| Area Water Sq Mi: | 0.00 |
| Area Total Km2: | 1.69 |
| Area Land Km2: | 1.69 |
| Area Water Km2: | 0.00 |
| Population As Of: | 2020 |
| Population Density Km2: | 28.35 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 4001 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 59410 (Augusta) |
| Area Code: | 406 |
| Blank Name: | FIPS code |
| Blank Info: | 30-30750 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2804301 |
| Population Total: | 48 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 73.39 |
Gilman is an unincorporated community and census-designated place (CDP) in Lewis and Clark County, Montana, United States. It is near the northern border of the county, on the east side of U.S. Route 287. Augusta is less than 2miles to the southwest. US-287 leads northeast from Gilman to Choteau and south through Augusta to Interstate 15 near Wolf Creek. Montana Highway 21 forms the southern edge of Gilman and leads east to Simms.
Elk Creek, a tributary of the Sun River, flows eastward through the southern part of the CDP.
Gilman was first listed as a CDP prior to the 2020 census.
The CDP is covered by two school districts: Augusta Elementary School District and Augusta High School District.[2] Both districts are a part of Augusta Public Schools.[3]