W

Ilmarinen was a Finnish Navy Panssarilaiva. The unit was constructed at the Crichton-Vulcan shipyard in Turku, Finland, and named after the mythological hero Ilmarinen from the Finnish national epic, the Kalevala. Ilmarinen was the flagship of the Navy from 1 May 1933 until her sinking on 13 September 1941.

W

Murtaja was a Finnish state-owned steam-powered icebreaker. Built in 1890 by Bergsunds Mekaniska Verkstads AB in Stockholm, Sweden, she was the first state-owned icebreaker of Finland and one of the first purpose-built icebreakers in the world. Murtaja remained in service for 68 years until she was decommissioned and broken up in 1958 after having been replaced by the diesel-electric Karhu.

W

Riilahti was a Ruotsinsalmi class minelayer of the Finnish Navy. Riilahti was commissioned in 1940 and sunk in 1943. The vessel was named after the battle of Riilahti, which was fought between Sweden and Russia in 1714.

W

Sampo was a Finnish state-owned steam-powered icebreaker. Built in 1898 by Sir W.G. Armstrong, Whitworth & Co Ltd in Newcastle upon Tyne, United Kingdom and named after a magical artifact from the Finnish mythology, she was the second state-owned icebreaker of Finland and the first European icebreaker equipped with a bow propeller. When Sampo was decommissioned and broken up in 1960, she was also the second last steam-powered icebreaker in the Finnish icebreaker fleet.

W

Sisu was a Finnish state-owned icebreaker. Built in 1939 at Wärtsilä Hietalahti Shipyard in Helsinki, she was one of the world's first diesel-electric icebreakers. In addition to icebreaking duties, she served as a submarine tender for the Finnish Navy during the summer months until the end of the Continuation War.

W

Tarmo is a Finnish steam-powered icebreaker preserved in the Maritime Museum of Finland in Kotka. Built in 1907 by Sir W.G. Armstrong, Whitworth & Co Ltd in Newcastle upon Tyne, United Kingdom, she was the third state-owned icebreaker of Finland and the last Finnish steam-powered icebreaker to remain in service. When Tarmo was decommissioned in 1970, a decision was made to preserve the vessel as a museum ship. After a long wait in Helsinki, Tarmo was towed to Kotka and completely restored in the early 1990s.

W

Väinämöinen was a Finnish coastal defence ship, the sister ship of the Finnish Navy's flagship Ilmarinen and also the first ship of her class. She was built at the Crichton-Vulcan shipyard in Turku and was launched in 1932. Following the end of the Continuation War, Väinämöinen was handed over to the Soviet Union as war reparations and renamed Vyborg. The ship remained in Soviet hands until her scrapping in 1966.

W

Voima was a Finnish and later Soviet steam-powered icebreaker. Laid down at Werft Becker & Co. in Tallinn in 1916 and fitted with engines in Danzig in 1918, the unfinished icebreaker was towed to Helsinki in 1920 and completed by Sandvikens Skeppsdocka och Mekaniska Verkstads Ab in 1923–1924. After two decades of successful service Voima was handed over to the Soviet Union as war reparation in 1945 and renamed Malygin (Малыгин). She remained in service until 1970 and was broken up in 1971.