Munidopsis serricornis is a species of squat lobster.

It is widely distributed in the world's oceans, being found in the eastern Atlantic Ocean (from Iceland and Norway to the Cape Verde Islands), the western Atlantic Ocean (from the United States to the Gulf of Mexico), and the Indo-Pacific (from Australia and the Malay Archipelago to Madagascar).

[4] M. serricornis appears to be one of the most abundant megafauna species in the cold water coral reefs of southern Norway.

[5] It has also been observed in association with the gorgonian Acanthogorgia.

It was described independently in 1857 under the name Galathea tridentata by Laurits Esmark.