- Seals: Atlantic walruses are known to share feeding grounds with seal species such as harp seals (_Phoca groenlandica_), hooded seals (_Cystophora cristata_), and ringed seals (_Pusa hispida_). Interactions may include competition for food, particularly benthic organisms found on the seafloor, and occasional aggressive encounters.
- Polar bears: Polar bears (_Ursus maritimus_) and walruses may come into contact in areas where they both hunt for seals. Although conflicts between the two species are rare, polar bears may occasionally prey on walrus pups.
- Killer whales: Killer whales (_Orcinus orca_) are significant predators of walruses, particularly calves and young animals. Walruses may display defensive behavior, such as forming tight groups or using their tusks, when confronted by killer whales.
- Narwhals: Walruses sometimes co-occur with narwhals (_Monodon monoceros_) in Arctic waters. While they may occupy similar habitats, there is limited evidence of direct interactions or ecological relationships between these two species.
- Seabirds: Walruses are often associated with various seabird species that share their habitats. For example, they may share haul-out sites with seabirds such as black guillemots (_Cepphus grylle_) and common eiders (_Somateria mollissima_). These birds may benefit from the protection offered by walrus herds against predators.
Overall, the interactions between Atlantic walruses and other species are primarily related to competition for resources, predation avoidance, and co-habitation of similar environments.