Russian battlecruiser Admiral Nakhimov

	Kalinin c. 1991
History
→ Soviet Union → Russia
Name	Kalinin → Admiral Nakhimov
Namesake	Mikhail Kalinin → Pavel Nakhimov
Builder	Baltic Shipyard, Leningrad
Laid down	17 May 1983
Launched	25 April 1986
Commissioned	30 December 1988
Identification	Pennant number: 180 → 064 → 085 → 080
Status	Undergoing sea trials after refit
General characteristics
Class & type	Kirov-class battlecruiser
Displacement	24,000 t (24,000 long tons) standard; 28,000 t (28,000 long tons) fully loaded;
Length	251.1 m (823 ft 10 in)
Beam	28.5 m (93 ft 6 in)
Draft	10.3 m (33 ft 10 in)
Installed power	2 × nuclear reactors; 2 × boilers;
Propulsion	2 × steam turbines; 2 × shafts
Speed	32 kn (59 km/h; 37 mph) (CONAS); 25 kn (46 km/h; 29 mph) (nuclear only);
Range	Unlimited (nuclear only)
Complement	710 officers and sailors
Armament	80 × Kalibr, P-800 Oniks or Tsirkon anti-ship missile launchers; 96 × S-400 surface-to-air missile launchers ; 2 × 4K33 Osa-M surface-to-air missile launchers; 6 × Pantsir-M close-in weapon systems; 1 × 130 mm (5 in) A-129M dual-purpose gun; 10 × 533 mm (21 in) torpedo tubes; 1 × RBU-6000 anti-submarine rocket launchers; 2 × RBU-1000 anti-submarine rocket launchers;
Aircraft carried	3 × Kamov Ka-27 helicopters

Admiral Nakhimov (Russian: Адмирал Нахимов) is the third Project 1144 Orlan (NATO reporting name Kirov-class) battlecruiser of the Russian Navy. The ship was originally part of the Soviet Navy as Kalinin (Russian: Калинин), until it was renamed in 1992 after Pavel Nakhimov. Officially it is designated as a "heavy nuclear-powered missile cruiser", but due to being the largest surface warship in service besides aircraft carriers, the Kirov class is often called a "battlecruiser" (not to be confused for the battlecruisers of the 1910s). It was laid down on 17 May 1983 at the Baltic Shipyard in Leningrad, launched on 25 April 1986, and commissioned on 30 December 1988.

The Kirov-class battlecruisers were developed to counter NATO submarines and carrier strike groups. Admiral Nakhimov has a large armament that originally included P-700 Granit anti-ship missiles, S-300F surface-to-air missiles, 4K33 Osa-M surface-to-air missiles, and several anti-submarine missile launchers. It also has a helicopter landing pad and under-deck facilities to store three Kamov Ka-27 helicopters. To enable the ship to reach a high speed of over 30 knots, it is equipped with a combined nuclear and steam system, with each of its two steam turbines being connected to a nuclear reactor and an oil-fired boiler that provides additional power.

Since 1999 Admiral Nakhimov is undergoing a repair and a refit to receive new and improved weaponry and had been scheduled to re-enter service with the Russian Navy in around 2022. The date for the ship's return to service is uncertain. In 2021 it was reported that the ship's return to service would be delayed until "at least" 2023 while in February 2022 it was reported that Sevmash CEO Mikhail Budnichenko noted that the warship was planned for delivery in 2022. Later in the year it was again reported that the vessel's return to service might be delayed as late as 2024, with this being eventually confirmed by the head of United Shipbuilding Corporation Alexei Rakhmanov. In December 2024, TASS reported that the ship had begun factory sea trials after its repairs and modernization.