Dom Morświna w Helu, Marine mammal museum in Hel, Poland

Dom Morświna is a museum in Hel dedicated to Baltic harbour porpoises, opened on 5 September 2015. Its display cases and panels cover the animals' biology, their past use by humans, their relations with people and the problems they face today. Screens show films and animations about porpoises and about other whales recorded in Polish Baltic waters in recent decades: bottlenose dolphin, fin whale, humpback and common dolphins.

Dom Morświna opened on 5 September 2015 as a museum devoted to Baltic harbour porpoises. It presents displays on porpoise biology, their past use by people, and the modern threats they face. Films and animations also cover other whales recorded in the Polish Baltic in recent decades, including the common dolphin, fin whale, humpback whale and white-beaked dolphin.

The museum's name refers to the harbour porpoise (morświn), the only whale species that regularly lives in the Baltic. Its displays cover how people have used porpoises and how the animals and humans have interacted, alongside the modern threats they face. Films shown inside also feature other whales recorded in Polish Baltic waters in recent decades: the white-beaked dolphin, fin whale, humpback and common dolphins.

Dom Morświna opened on 5 September 2015 in Hel, at the tip of the Hel Peninsula. Inside, visitors move between display cases and information boards, then watch films and animations about porpoises and other whales recorded in the Polish Baltic in recent decades.

The museum's films and animations also show whales recorded in the Polish Baltic in recent decades: the white-beaked dolphin, the fin whale, the humpback whale and the common dolphin. These are species a visitor would not expect in this sea, and the screenings document their appearances.