| Official Name: | Bynum, Montana |
| Settlement Type: | Census-designated place & Unincorporated community (CDP) |
| Pushpin Map: | Montana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Montana |
| Subdivision Type2: | County |
| Subdivision Name2: | Teton |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.22 |
| Area Land Km2: | 4.22 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 1.63 |
| Area Land Sq Mi: | 1.63 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 28 |
| Population Density Km2: | 6.64 |
| Population Density Sq Mi: | 17.20 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 3976 |
| Coordinates: | 47.9792°N -112.3117°W |
| Area Code: | 406 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 769461 |
Bynum is an unincorporated community and census-designated place in Teton County, Montana, United States, approximately 13 miles north of Choteau. Its population was 31 as of the 2010 census.[2]
Bynum is the site of a one-room country school, a general store, post office, an agate shop, and Two Medicine Dinosaur Center, which provides displays and educational programs about dinosaurs.
The town's name is derived from the surname of a family of early settlers in the area.[3] The post office was established in 1885.[4] In 1908 work on the Bynum Reservoir began.
In 2017, the NBC Today Show produced a segment highlighting Bynum's school and its tradition of starting each school day with a song and a dance.[5]