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

[2] The genus has around 100 species, mainly found in tropical America and Africa.

[1] The genus name Megalastrum was first published by Richard Holttum in 1987.

[1] As of January 2020[update], Plants of the World Online recognized the following species:[3]

This Dryopteridaceae-related article is a stub.