| Official Name: | Greenbank, Delaware |
| Pushpin Map: | Delaware#USA |
| Pushpin Label: | Greenbank |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Delaware |
| Subdivision Type2: | County |
| Subdivision Name2: | New Castle |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 105 |
| Coordinates: | 39.7389°N -75.6358°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 19808 |
| Area Code: | 302 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 216915 |
Greenbank is an unincorporated community located west of Wilmington in New Castle County, Delaware, United States. It is located at the intersection of Delaware Route 41 and Greenbank Road.
Greenbank uses the Wilmington ZIP code of 19808. Locals refer to Greenbank as "Wilmington". There are several historical landmarks in Greenbank, such as the Wilmington and Western Railroad that operates tourist trains over the former Baltimore and Ohio Railroad line between Greenbank and Hockessin.
The Greenbank Historic Area includes the Greenbank Mill, Robert Phillips House, and W.G. Phillips House. The mill was constructed in 1790 and then expanded in 1812. The Robert Phillips House was erected sometime around 1783. The W.G. Phillips House, the former mill owner's house, was built in the early 1820s.