Leptodactylus is a genus of leptodactylid frogs. It includes the species commonly called ditch frogs or white-lipped frogs. It is very similar to Physalaemus, a close relative, and indeed the 2005 described Leptodactylus lauramiriamae is in some aspects intermediate between them.
The name means 'slender finger', from ' ('thin, delicate') and the Greek ' (, 'finger, toe').
The genus Leptodactylus<nowiki/>'s sister taxon is the genus Hydrolaetare.
The genus is composed of four species groups. However, three species have not been assigned to a species group (L. hylodes, L. lauramiriamae, L. ochraceus).
There are 84 species in this genus: