Pachydactylus vansoni, commonly known as Van Son's gecko or Van Son's thick-toed gecko, is a species of lizard in the family Gekkonidae.

The specific name, vansoni, is in honor of Russian-born Dutch entomologist Georges Van Son (1898-1967), who worked at the Transvaal Museum (1925-1967).

[3] P. vansoni is distributed in Lesotho, Mozambique, South Africa, Eswatini, and Zimbabwe.

The geographic range of this species is estimated to be larger than 100,000 km2 (38,610 sq mi).

[1] The preferred natural habitats of P. vansoni are grassland and savanna, at altitudes from sea level to 2,300 m (7,500 ft).