Russian submarine Imperator Aleksandr III

Imperator Aleksandr III (Император Александр III) is a Borei-class submarine nuclear-powered ballistic missile submarine of the Russian Navy. The submarine is named after Alexander III of Russia and was launched on 29 December 2022.

The boat was reported to be nearing the conclusion of its state sea trials as of November 2023. She entered service on 11 December 2023.