The giant blind snake (Rena maxima ) is a species of snake in the family Leptotyphlopidae. The species is endemic to Mexico.
The largest recorded specimen of R. maxima is a female with a snout-to-vent length (SVL) of 33 cm (13 in) plus a tail 1.8 cm (0.71 in) long.
R. maxima is found in the Mexican states of Guerrero, Morelos, Oaxaca, and Puebla.
R. maxima is oviparous. Clutch size may be as large as seven eggs.