Liolaemus hajeki, also known commonly as Hajek's lizard and la lagartija de cuello liso de Hajek in Chilean Spanish, is a species of lizard in the family Liolaemidae. The species is endemic to Chile.
The specific name, hajeki, is in honor of Chilean biologist Ernst Hajek.[1]
L. hajeki is found in El Loa Province, Antofagasta Region, northern Chile.
The preferred natural habitat of L. hajeki is shrubland, at altitudes of .
L. hajeki preys upon insects.
The mode of reproduction of L. hajeki is unknown.