Codiaceae is a family of green algae in the order Bryopsidales.

Genera As of 2025, Codiaceae contains the following genera: † Alpinium † Aphroditicodium † Appeninocodium † Arabicodium † Atlasinium † Bacinellacodium † Bucurium † Canadiophycus † Carpathocodium Codium † Cummingsella † Diversoporella † Egericodium Geppella † Globosiphonia † Johnsonicodium † Lanciculina † Malakhovella † Nansenella † Palaeoporella † Praelitanaia † Protocodium † Radoicicinellopsis † Schirschovaea † Scotlandella † Shonabellia † Sinuatoporella † Succodium † Tethysicodium † Thaiporella † Vitinellopsis † Vitivisus

Synonyms and excluded genera: Acanthocodium Agardhia A.Cabrera, 1823, nom. illeg., currently regarded as a synonym of Codium.AlgaeBase Lamarckia Olivi, 1792, nom. rejic., currently regarded as a synonym of Codium.AlgaeBase Moniliaxes Kajimura, 1977, Taxonomic status: uncertain, requiring further investigation.AlgaeBase Spongodium J.V.F.Lamouroux, 1813, Taxonomic status: uncertain, requiring further investigation.AlgaeBase

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