An inventory of reptiles that occur below 1000 m was conduced in Yacopí, Cundinamarca, Colombia. We recorded 47 species (26 lizards, 19 snakes, one amphisbaenian and one turtle). The richest family was Colubridae and the richest genus was Norops. Fauna was grouped according to its distribution as: trans-Andean species (those that occur the western side of the Cordillera Oriental) and widespread species (those that occur on both the western and eastern sides of the mountain range). Lizards dominate the first group and snakes the second. We found that 2000 m is the upper limit of distribution in Colombia for the reptiles reported herein.