Gammarus oceanicus
- kingdom: Animalia
- phylum: Arthropoda
- class: Malacostraca
- order: Amphipoda
- family: Gammaridae
- genus: Gammarus
- species: Gammarus oceanicus
Qaqortoq
Kujalleq
GreenlandGöteborg
Västra Götaland
SwedenBranford
Branford Center
New Haven
Poquonock Bridge
West Haven
ConnecticutBeverly
Beverly Cove
Centerville
Gloucester
Salem
South Dennis
MassachusettsWesterly
Rhode Island
United States