Woods Hole Science Aquarium, Marine research aquarium in Woods Hole, Falmouth, United States.

Woods Hole Science Aquarium is a small public aquarium owned by the US government and operated by the National Marine Fisheries Service and the Marine Biological Laboratory. Its indoor tanks and touch tank display about 140 species of fish and invertebrates from Northeastern and Mid-Atlantic waters, and an outdoor habitat permanently houses injured seals. It reopened at its current location in 1961.

The aquarium traces its origin to 1873 or 1875, when Spencer Fullerton Baird invited the public to his Woods Hole laboratory. In 1885 the government built the first marine research building there, with a public aquarium on the first floor; that exhibit inspired the National Aquarium in Washington, D.C., in 1878. Hurricane Carol damaged the original building in 1954, it was torn down in 1958, and the aquarium reopened at its current site in 1961.

The aquarium displays about 140 species of fish and invertebrates from Northeastern and Mid-Atlantic US waters in indoor tanks and a touch tank. Its sea turtle program rehabilitates turtles stunned by cold weather on Cape Cod beaches in late autumn; these animals are treated out of public view and released when healthy.

The aquarium sits in the village of Woods Hole, part of Falmouth on Cape Cod, and is run by the National Marine Fisheries Service and the Marine Biological Laboratory. About 80,000 people visit each year, so allow time for the indoor tanks, the touch tank and the outdoor seal habitat. Sea turtles rehabilitated after stranding on Cape Cod beaches in late autumn are kept behind the scenes and are not shown to visitors.

The aquarium also rehabilitates sea turtles stunned by cold weather on Cape Cod beaches in late autumn. These turtles are treated until healthy enough for release and are kept out of public view, so visitors never see them during their stay.