Adagnesia is a genus of tunicates in the family Agneziidae, first described in 1963 by Patricia Kott.

[2][3] The type species is Adagnesia opaca Kott, 1963.

[2][3] In Australia it is found in seas off New South Wales, Queensland and Victoria at depths of up to 5000 metres.

[2] However, around the world it is found in seas of both the northern and southern Atlantic Oceans, and the eastern and southern Pacific basins.

This tunicate-related article is a stub.