Phyllorhynchus is a genus of snakes in the family Colubridae.

The genus is native to the southwestern United States and adjacent northwestern Mexico[1] The genus Phyllorhynchus contains two species which are recognized as being valid.

[1] Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Phyllorhynchus.

Snakes of the genus Phyllorhynchus are heavy-bodied, but small, 6 to 20 in (15 to 51 cm) in total length, which includes a short tail.

The rostral scale is enlarged and has free lateral edges.