| Poplar High School | |
| Address: | 400 4th Avenue West |
| Type: | Free public |
| District: | Poplar School District 9 & 9B |
| Grades: | 9th12th |
| Principal: | Dwain Haggard |
| City: | Poplar |
| State: | Montana |
| Country: | United States |
| Campus Type: | Reservation |
| Enrollment: | 223 (2017–18)[1] |
| Faculty: | 21.15 (FTE) |
| Ratio: | 10.54 |
| Mascot: | Indians |
| Colors: | Maroon and gold [2] |
| Coordinates: | 48.1125°N -105.2028°W[3] |
Poplar High School is a high school (grades 9–12) in the small town of Poplar, Roosevelt County, Montana, United States.
In 2007 it had 200 plus students and 25 teachers.