| Bull Wall | |
|---|---|
| Native name Balla an Bhulla | |
 | |
| Location | Clontarf, Dublin, Ireland |
| Coordinates | 53°21′08″N 6°09′53″W / 53.3521°N 6.1647°W |
| Built | 1820 – 1825 |
| Architect | George Halpin |
The Bull Wall (Irish: Balla an Bhulla), or North Bull Wall (Irish: Balla an Bhulla Thuaidh), at the Port of Dublin, extending from the estuary of the River Tolka and the district of Clontarf out nearly 3 km into Dublin Bay, is one of the two defining sea walls of the port, and faces the earlier-constructed Great South Wall. It has one of a trio of port lighthouses at the end of its extension breakwater, and a statue of Realt na Mara ('Mary, Queen of the Sea') partway along, and was responsible for the formation of North Bull Island with its nearly 5 km of beach.