18 genera (but see text) Hylinae is a large subfamily of "tree frogs", family Hylidae.

The Amphibian Species of the World follows the revision by Duellman and colleagues from 2016 based on molecular data[4] and delimits the subfamily more narrowly than before, treating parts of former Hylinae as their own subfamilies.

They are found North, Central, and the northmost South America, much of temperate Eurasia, Japan, and extreme northern Africa,[5] however, only Hyla is found outside the Americas.

The AmphibiaWeb[2] follows an older classification defining Hylinae more broadly, with several hundred species.

[2] At the end of 2020, the Amphibian Species of the World includes the following 18 genera:[5] At the end of 2020, the AmphibiaWeb includes the following 42 genera:[2] Hylinae are largely arboreal frogs, although Smilisca and Triprion are burrowers.