Liolaemus darwinii, also known commonly as Darwin's tree iguana, is a species of lizard in the family Liolaemidae.

The specific name, darwinii, is in honor of English naturalist Charles Darwin, the author of On the Origin of Species.

[3] The preferred natural habitat of L. darwinii is shrubland, at altitudes from sea level to 3,000 m (9,800 ft).

[1] The males of L. darwinii are brown with two yellow dorsal stripes that run along the spine, one on each side of the back.

[citation needed] L. darwinii eats various insects 5 cm (2.0 in) or less in length, including beetles and locusts.