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

[3] A. grilli is native to extreme northwestern Argentina,[1][2] adjacent southeastern Brazil,[1][2] and Uruguay.

[2] The type locality is Palmeira, Paraná, Brazil.

[2] The preferred natural habitats of A. grilli are forest and grassland.