Project 23900 amphibious assault ship

	Official model of the Project 23900.
Class overview
Builders	Zaliv shipyard, Kerch
Operators	Russian Navy
Preceded by	Khalzan class Project 11780
Cost	RUB 50 billion ($688 Million)
Built	2020–present
Planned	2
Building	2
General characteristics
Type	Amphibious assault ship
Displacement	40,000 tons
Length	220 m (721 ft 9 in)
Beam	38 m (124 ft 8 in)
Draught	7.5 m (24 ft 7 in)
Propulsion	2 × 16D49 turbo diesels (5 MW each), 2 × M90FR gas turbines (21 MW each)
Speed	22 knots (41 km/h; 25 mph)
Range	6,000 mi (5,200 nmi; 9,700 km)
Endurance	60 days
Capacity	75 armored fighting vehicles; 4 landing or assault boats of the:; Serna class; Dyugon class; 2 Tsaplya class;
Troops	up to 900 marines
Complement	320 crew
Armament	1 x 100 mm A190 naval gun; 3 x Kashtan CIWS; 2 x Pantsir-M;
Aircraft carried	Up to 30 military helicopters and 4 drones, mix of:; Kamov Ka-27; Kamov Ka-29; Kamov Ka-31; Kamov Ka-52K; Kamov Ka-65; Sukhoi S-70 Okhotnik-B;
Aviation facilities	Hangar deck

The Project 23900 Ivan Rogov is the newest class of Russian amphibious assault ships intended as a replacement for the French Mistral class, two of which were ordered by Russia in 2011, but that France refused to deliver in September 2014 due to the Russo-Ukrainian War. A contract was signed on 22 May 2020 for the construction of two Project 23900 ships with a displacement of 40,000 tons. The construction is led by JSC Zelenodolsk Design Bureau, which is a part of JSC Ak Bars Shipbuilding Corporation.

Previously, the Lavina (Russian: Лавина, lit. 'Avalanche'), and Priboy (Russian: Прибой, lit. 'Surf') designs were proposed by the Nevskoe Design Bureau and Krylov State Research Center as the replacement for Mistrals.

Project 23900 is also a successor class to the unrealized Soviet Project 11780 program.