Cadlina is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks historically classified in the family Chromodorididae.

Johnson in 2011 has shown that Cadlina does not belong to the family Chromodorididae.

[2] She has therefore brought back the name Cadlinidae from synonymy with Chromodorididae.

The family Cadlinidae also includes the genus Aldisa Bergh, 1878.

[2] Species in the genus Cadlina include: