Tropidophis pilsbryi, commonly known as Pilsbry's dwarf boa[1] or the Cuban white-necked dwarf boa, is a species of snake in the family Tropidophiidae.

[2] The species is endemic to Cuba.

[1] Both the specific name, pilsbryi, and one of the common names, Pilsbry's dwarf boa, are in honor of American malacologist Henry Augustus Pilsbry.

[4] Males of T. p. pilsbryi grow to a snout–vent length (SVL) of 295 mm (11.6 in), and females grow to 260 mm (10 in) SVL.

[1] T. p. galacelidus can get larger, with a snout–vent length of 187 mm (7.4 in) in males, but 405 mm (15.9 in) SVL in females.