| Official Name: | Lake McDonald, Montana |
| Pushpin Map: | Montana#USA |
| Pushpin Label: | Lake McDonald |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Montana |
| Subdivision Type2: | County |
| Subdivision Name2: | Flathead |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 3225 |
| Coordinates: | 48.6208°N -113.8717°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 59921[1] |
| Area Code: | 406 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 785919 |
Lake McDonald is an unincorporated Flathead County, Montana, United States community. The community is located on the northeastern shore of Lake McDonald in Glacier National Park.
Before 1878, the lake was known as Terry Lake, after Gen. Alfred Terry. The National Park Service formalized the name of Lake McDonald.[2]