Oceanic Victor is an Australian privately owned company which runs marine tourism facilities on and adjacent to Granite Island, Encounter Bay, South Australia. The company's main attraction is a floating at-sea aquarium containing Southern blue fin tuna and other marine species. The facility is located within a Habitat Protection Zone of the Encounter Marine Park and opened to the public on 2 September 2017. Since 2019 it has been open intermittently while work has been undertaken on the causeway to Granite Island and owing to COVID19 restrictions in 2020. As of 2021, the attraction is in Port Lincoln where it is undergoing maintenance. It is expected to reopen in 2022 once work on the causeway is complete.

Granite Island, also known by the Ramindjeri people as Nulcoowarra, is a small island next to Victor Harbor, South Australia, about 80 km south of South Australia's capital city, Adelaide.