HMNZS Aotearoa (Māori: [aɔˈtɛaɾɔa]), formerly the Maritime Sustainment Capability project, is an auxiliary ship of the Royal New Zealand Navy. Builder Hyundai Heavy Industries delivered the ship to the Navy in June 2020, and she was commissioned into service on 29 July 2020. Full operational capability was expected to be achieved in 2021. It will serve as a replenishment oiler, and has replaced HMNZS Endeavour, the Navy’s last fleet oiler, which was decommissioned in December 2017. Aotearoa is the largest ship the Royal New Zealand Navy has operated.