Ships built in Helsinki

Dikson (Russian: Диксон) is a Russian icebreaker and the final vessel in a series of three subarctic icebreakers built at Wärtsilä Helsinki shipyard in Finland in 1982–1983. The vessel's sister ships are Mudyug (rebuilt in 1986) and Magadan.

Enchantment of the Seas is a Vision-class cruise ship operated by Royal Caribbean International.

Yuriy Kuchiev is an icebreaking gas condensate tanker operated by the Greek shipowner Dynacom. The vessel, built at Arctech Helsinki Shipyard in Finland, utilizes the double acting ship principle to allow independent operation without icebreaker escort in ice-covered seas. The vessel was delivered to the owner in August 2019.

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.

Moskva (Russian: Москва; literally: Moscow) was a Soviet polar icebreaker and the lead ship of a series of five diesel-electric icebreakers named after major Soviet cities. She was built at Wärtsilä Hietalahti shipyard in Helsinki, Finland, in 1959 and when delivered was the largest and most powerful non-nuclear icebreaker ever built. Shortly after the dissolution of the Soviet Union, Moskva was decommissioned after a long and successful career along the Northern Sea Route and sold for scrap in 1992.

Murmansk (Russian: Мyрманск) is a Russian Project 21900M diesel-electric icebreaker. While her construction was contracted to Vyborg Shipyard in Russia, she was built at Arctech Helsinki Shipyard in Finland and delivered to Rosmorport in 2016.

Polaris is a Finnish icebreaker. Built in 2016 by Arctech Helsinki Shipyard, she is the most powerful icebreaker ever to fly the Finnish flag and the first icebreaker in the world to feature dual-fuel engines capable of using both low-sulfur marine diesel oil (LSMDO) and liquefied natural gas (LNG). Polaris was initially ordered by the Finnish Transport Agency, but the ownership was transferred to the state-owned icebreaker operator Arctia after delivery.

Aranda is a Finnish ice-strengthened research vessel built by Wärtsilä Marine in 1989 and owned by the Finnish Environment Institute. A state-of-the-art research vessel equipped for icy conditions, she operates mainly in the Baltic Sea but has also made voyages to the Arctic Sea as well as the areas around Antarctica.

Otso is a Finnish state-owned icebreaker. Built by Wärtsilä Helsinki shipyard in 1986 to replace the aging Karhu-class icebreakers, she was the first Finnish post-war icebreaker to be built without bow propellers. Otso has an identical sister ship, Kontio, which was delivered in 1987.

Sisu (Callsign OHMW) is a Finnish icebreaker of the Atle class built in 1976 in Helsinki.