Metlapilcoatlus olmec is a pit viper species found in Mexico.

[2] Found at elevations of 800–1,500 m in Mexico on the upper slopes of the Sierra de Los Tuxtlas in southern Veracruz.

Also found in eastern Oaxaca, and from northwestern Chiapas to Guatemala.

[5] The type locality given is "crest of Cerro Egega, 1100 m, municipality of Catemaco" (Veracruz, Mexico).

[5] Species are listed as such due to their wide distribution, presumed large population, or because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.