| Official Name: | Cornwallis Square |
| Settlement Type: | Village |
| Pushpin Map: | Nova Scotia |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of Cornwallis Square, Nova Scotia |
| Pushpin Mapsize: | 275 |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | County |
| Subdivision Name2: | Kings |
| Established Title2: | Incorporated |
| Established Date2: | 1947 |
| Population As Of: | 2006 |
| Population Density Km2: | auto |
| Timezone: | AST |
| Utc Offset: | -4 |
| Timezone Dst: | ADT |
| Utc Offset Dst: | -3 |
| Coordinates: | 45.0731°N -64.6694°W |
| Postal Code Type: | Canadian Postal code |
| Postal Code: | B0P 1CO |
| Area Code: | 902 |
| Blank Name: | Telephone Exchange |
| Blank1 Name: | NTS Map |
| Blank2 Name: | GNBC Code |
Cornwallis Square is a Canadian village in Kings County, Nova Scotia. It is located on the Cornwallis River.
The village commission was originally established in 1947 as the WCG Commission and was responsible for fire protection, recreation and sidewalks in Waterville, Cambridge, and Grafton. When the rural community of Woodville was included in the service area in the 1960s the name was changed to Cornwallis Square.
The area's largest employer is Michelin.