Hylinae is the largest subfamily of the family Hylidae, the "tree frogs". It contains nearly 700 species in 41 genera. They are generally found in North and South America, Europe, temperate Asia, and Africa north of the Sahara.

Charadrahyla is a genus of frogs in the family Hylidae. It is endemic to tropical southern Mexico. The generic name was derived from Greek charadra ("ravine") and Hyla, in reference to the habits of these frogs. Accordingly, common name ravine treefrogs has been coined for the genus.

Dryophytes is a genus of Ameroasian tree frogs in the family Hylidae. They are found mostly in North America, but the genus also includes three species found in eastern Asia.

Duellmanohyla is a genus of frogs in the family Hylidae found in Oaxaca, Mexico, as well as Central America. These are small stream-breeding frogs have bright red, bronze or yellow irises. Their dorsa are uniform pale green, olive, red-brown or lichenose, with green or olive spots on a black background. Several species have pale upper labial and lateral stripes. Some fingers or toes have moderate webbing.

Ecnomiohyla, commonly known as fringe-limbed treefrogs or marvelous frogs, is a genus of frogs in the family Hylidae. This genus was erected in 2005 following a major revision of Hylidae. The ten original species in this genus were previously placed in the genus Hyla. The generic name Ecnomiohyla comes from Greek ecnomios and Hylas, the companion of Hercules.

Exerodonta is a genus of frogs in the family Hylidae. This genus was resurrected in 2005 following a major revision of the Hylidae. Eleven species previously placed in the genus Hyla were moved to this genus. They are endemic to south-central Mexico.

Hyla is a genus of frogs in the tree frog family Hylidae. As traditionally defined, it was a wastebasket genus with more than 300 species found in Europe, Asia, Africa, and across the Americas. After a major revision of the family most of these have been moved to other genera so that Hyla now only contains 17 extant (living) species from Europe, northern Africa and Asia. The earliest known fossil member of this genus is †Hyla swanstoni from the Eocene of Saskatchewan, Canada, but its designation to Hyla happened before the major revision, meaning that its position needs confirmation.

Isthmohyla is a genus of frogs in the family Hylidae. This genus was erected in 2005 following a major revision of the Hylidae. The 15 species in this genus were previously placed in the genus Hyla. They are endemic to Central America in Honduras, Costa Rica, and Panama.

The Mexican burrowing tree frog is a genus of frogs in the family Hylidae found in Mexico, southern Texas and Arizona, Central America, and northwestern South America. In a recent revision of the Hylidae, the two species of the previous genus Pternohyla were included in this genus. Its name is from the Ancient Greek smiliskos, referring to the pointed frontoparietal processes.

Phyllodytes is a genus of frogs in the family Hylidae. It is endemic to eastern Brazil.

Ptychohyla is a genus of frogs in the family Hylidae. These frogs are found in the southern Mexican states of Chiapas, Guerrero, and Oaxaca, and Central America to western Panama.

The Mexican burrowing tree frog is a genus of frogs in the family Hylidae found in Mexico, southern Texas and Arizona, Central America, and northwestern South America. In a recent revision of the Hylidae, the two species of the previous genus Pternohyla were included in this genus. Its name is from the Ancient Greek smiliskos, referring to the pointed frontoparietal processes.

Spikethumb frogs are a genus (Plectrohyla) of frogs in the family Hylidae found in Central America from southern Mexico through Guatemala and northern El Salvador to central and northern Honduras. A major revision of the Hylidae moved an additional 21 species to this genus from the genus Hyla. They are called spikethumb because of the spike on their thumbs, which is called a prepollex. The genus name comes from the Greek word plēktron ("spur") and hyla.

Tlalocohyla is a genus of frogs in the family Hylidae, also known as rain treefrogs or Middle American yellow-bellied treefrogs. They occur in Middle America between Mexico and Costa Rica. This genus was created in 2005 following a major revision of the Hylidae. The four species in this genus were previously placed in the genus Hyla.

Triprion is a genus of frogs in the family Hylidae found in the Pacific lowlands of Mexico, the Yucatán Peninsula, and Guatemala. These frogs hide in tree-holes and plug the entrance with their strange-looking, bony heads.