| Official Name: | Twombly Ridge, Maine |
| Settlement Type: | Unorganized territory |
| Pushpin Map: | Maine |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of Maine |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Maine |
| Subdivision Type2: | County |
| Subdivision Name2: | Penobscot |
| Unit Pref: | Imperial |
| Area Total Km2: | 116.8 |
| Area Land Km2: | 113.7 |
| Area Water Km2: | 3.2 |
| Area Total Sq Mi: | 45.1 |
| Area Land Sq Mi: | 43.9 |
| Area Water Sq Mi: | 1.2 |
| Population As Of: | 2020 |
| Population Total: | 0 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 204 |
| Elevation Ft: | 669 |
| Coordinates: | 45.2773°N -68.2606°W |
| Postal Code Type: | ZIP code |
| Area Code: | 207 |
| Blank Name: | FIPS code |
| Blank Info: | 23-78015 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 582771 |
Twombly Ridge is an unorganized territory (township) located in Penobscot County, Maine, United States. At the 2020 census, the unorganized territory had a total population of 0.[1]
According to the United States Census Bureau, the unorganized territory has a total area of 45.1 square miles (116.8 km2), of which 43.9 square miles (113.7 km2) is land and 1.2 square miles (3.2 km2) is water. The total area is 2.70% water.
As of the 2020 Census,[2] there were no people living in the territory.