Cephalomanes atrovirens is a species of fern in the family Hymenophyllaceae.

[1] The genus Cephalomanes is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[2] but not by some other sources.

Two subspecies and two forms have been recognized,[1] all of which have been recognized as separate species in the genus Trichomanes by other sources:[3] The species as a whole is native to the Ryukyu Islands, Malesia (the Philippines and Sulawesi), Papuasia (New Guinea, the Bismarck Archipelago, and the Solomon Islands), the northwestern Pacific (the Mariana Islands, Palau, the Caroline Islands, and the Federated States of Micronesia), the southwestern Pacific (Fiji, Samoa, Tonga, the Santa Cruz Islands, and Vanuatu) and eastern Australia (Queensland, New South Wales, Norfolk Island, and Lord Howe Island).

[4][5][6][7] The two subspecies recognized by the Checklist of Ferns and Lycophytes of the World have distinct distributions.

C. atrovirens f. acrosorum is also native to Micronesia and the Solomon Islands,[6] whereas C. atrovirens f. kingii is also native to the Santa Cruz Islands.