Metaxya is a neotropical genus of ferns in the order Cyatheales.

It is the only genus in the family Metaxyaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

[1] Alternatively, the genus may be placed in the subfamily Metaxyoideae of a more broadly defined family Cyatheaceae,[2] the family placement used in Plants of the World Online as of November 2019[update].

[3] The species of the genus are characterized by large fronds that approach 8 ft (2.5 m) in length.

As of January 2023[update], Plants of the World Online accepted the following species:[3] Phylogeny of Metaxya[4][5] M. parkeri (Hooker & Greville) Smith M. rostrata (Kunth) Presl M. scalaris Tuomisto & Cárdenas M. lanosa Smith & Tuomisto M. contamanensis Tuomisto & Cárdenas M. elongata Tuomisto & Cárdenas This Cyatheales-related article is a stub.