Sullivan's Castle Island
- Address: 2080 William J Day Blvd
- Vicinity: Castle Island
- Neighborhood of South Boston in Boston
- Hours: Hours depend on weather, closed during winter starting Sunday after Thanksgiving until late February
- Phone: (617) 268-5685
Sullivan's serves hand-breaded, made-to-order Fish-N-Chips, Clam strips, Clam bellies, Scallops, Shrimp and Onion Rings. They also make, to order, burgers and hot dogs along with Hood Ice Cream and shakes. - AsNotedIn