| Official Name: | Vanceboro, Maine |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Maine#USA |
| Pushpin Label: | Vanceboro |
| Coordinates: | 45.5625°N -67.4294°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Maine |
| Subdivision Type2: | County |
| Subdivision Name2: | Washington |
| Subdivision Type3: | Town |
| Subdivision Name3: | Vanceboro |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 0.82 |
| Area Land Sq Mi: | 0.72 |
| Area Water Sq Mi: | 0.11 |
| Area Total Km2: | 2.14 |
| Area Land Km2: | 1.86 |
| Area Water Km2: | 0.27 |
| Population As Of: | 2020 |
| Population Density Km2: | 50.52 |
| Timezone: | Eastern (EST) |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Elevation Ft: | 422 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 04491 |
| Area Code: | 207 |
| Blank Name: | FIPS code |
| Blank Info: | 23-78640 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2806294 |
| Population Total: | 94 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 130.92 |
Vanceboro is a census-designated place (CDP) and the primary village in the town of Vanceboro, Washington County, Maine, United States. It is in northeastern Washington County, on the west side of the St. Croix River, which forms the Canada–United States border. Directly across the border is the small community of St. Croix, New Brunswick.
Maine State Route 6 passes through the center of Vanceboro, crossing the St. Croix River at the Vanceboro–St. Croix Border Crossing. Route 6 leads southwest to U.S. Route 1 in Topsfield, while to the east New Brunswick Route 4 leads to Thomaston Corner. The community is also the site of the Saint Croix–Vanceboro Railway Bridge, the only crossing between Canada and the United States to be attacked by a foreign force.
Vanceboro was first listed as a CDP prior to the 2020 census.