| Official Name: | Londonderry, Vermont |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Vermont#USA |
| Pushpin Label: | Londonderry |
| Pushpin Label Position: | bottom |
| Coordinates: | 43.2283°N -72.8114°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Vermont |
| Subdivision Type2: | County |
| Subdivision Name2: | Windham |
| Subdivision Type3: | Town |
| Subdivision Name3: | Londonderry |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.97 |
| Area Land Km2: | 0.92 |
| Area Water Km2: | 0.05 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population: | 180 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 350 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 05148 |
| Area Code: | 802 |
| Blank Name: | FIPS code |
| Blank Info: | 50-40150 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2807163 |
Londonderry is an unincorporated village and census-designated place (CDP) in the town of Londonderry, Windham County, Vermont, United States. As of the 2020 census, it had a population of 180,[2] compared to 1,919 in the entire town.
The CDP is in northwestern Windham County, in the northern part of the town of Londonderry. It sits in the valley of the West River, where it is joined from the north by Utley Brook. The West River is a south-flowing tributary of the Connecticut River.
Vermont Routes 11 and 100 combine to form the village's Main Street. Route 11 leads east to Chester and west over the Green Mountains to Manchester Center, while Route 100 leads north to Ludlow and south to Jamaica.