Macduff Marine Aquarium is a public aquarium located in Macduff, a small coastal town in Aberdeenshire, Scotland. The aquarium was established in 1997 and is owned and operated by Aberdeenshire Council.

The aquarium's main focus is on the marine life found in the Moray Firth, a body of water located off the northeast coast of Scotland. The exhibits at the aquarium showcase a range of species that are native to the area, including lobsters, crabs, starfish, sea urchins, and various species of fish. There is also a large outdoor seal viewing area where visitors can observe the local population of grey seals.

In addition to the exhibits, the aquarium offers a range of educational programs and events for visitors of all ages. There are guided tours, hands-on activities for children, and talks by marine biologists and other experts on a variety of topics related to marine conservation and research.

The aquarium is also involved in a number of research and conservation initiatives, including a long-term monitoring project of the local grey seal population. The aquarium's staff work closely with other marine conservation organizations in the region to promote sustainable fishing practices and raise awareness about the importance of protecting marine ecosystems.