Maxonia is a genus of ferns in the fern family Dryopteridaceae, subfamily Polybotryoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

[2] The genus has a single species Maxonia apiifolia, native to Cuba and Jamaica.

[1] It formerly occurred in Florida, but is now extinct there.

[3] The genus name of Maxonia is in honour of William Ralph Maxon (1877–1948), who was an American botanist and pteridologist.

[4] The genus was circumscribed by Carl Christensen in Smithsonian Misc.