The Akademik Sergey Vavilov (Russian: Академик Сергей Вавилов) is a Russian (formerly Soviet) research vessel, named after physicist Sergey Vavilov. She was completed on 12 February 1988, at the Hollming Yard in Rauma, Finland for the Soviet Union. Akademik Sergey Vavilov started operations as a research vessel of Shirshov Institute of Oceanology of the USSR Academy of Science (Russian Academy of Science since 1991) in the USSR on 20 March 1989, and prior to 7 November 1999, completed five research cruises into Norwegian Sea, North Atlantic Ocean and South Atlantic Ocean.^[3]

Akademik Sergey Vavilov in the Lemaire Channel (2006)
History
Russia
Name	Akademik Sergey Vavilov
Namesake	Sergey Ivanovich Vavilov
Operator	Shirshov Institute
Port of registry	1988–1992: Kaliningrad,  Soviet Union 1992 onwards: Kaliningrad,  Russia
Builder	Hollming, Rauma
Yard number	265
Laid down	18 August 1986
Launched	16 December 1986
Completed	12 February 1988
Identification	IMO number: 8507729 MMSI number: 273414400 Callsign: UAUO
Status	In service
General characteristics [1][2]
Tonnage	6,344 GT 1,903 NT 2,048 DWT
Length	117.17 m (384 ft 5 in)
Beam	18.22 m (59 ft 9 in)
Draft	5.90 m (19 ft 4 in)
Installed power	2 × 6CHN 40/46 (2 × 2,576 kW)
Propulsion	Two shafts; controllable pitch propellers Wärtsilä 600 kW bow and stern thrusters
Speed	16.0 knots (29.6 km/h; 18.4 mph)
Capacity	80 passengers
Crew	53

In recent times she has served as cruise ship specializing in Polar cruises. She is managed by International Shipping Partners and her current port of registry is Kaliningrad, Russia.

She has a sister ship, Akademik Ioffe, completed at Hollming in 1989. Both ships were chartered by One Ocean Expeditions until 2019.^[4]