Anisolepis grilli, commonly known as Boulenger´s tree lizard and papa-vento-do-rabo-rajado in Brazilian Portuguese, is a species of lizard in the family Leiosauridae. The species is endemic to South America.

Etymology: The specific name, grilli, is in honor of Italo-Brazilian physician Giuseppe Franco Grillo.

Geographic range: A. grilli is native to extreme northwestern Argentina, adjacent southeastern Brazil, and Uruguay.

The type locality is Palmeira, Paraná, Brazil.

Habitat: The preferred natural habitats of A. grilli are forest and grassland.

Reproduction: A. grilli is oviparous.