Powelliphanta spedeni, known as one of the amber snails, is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae.

This species is endemic to the South Island of New Zealand.

There are two subspecies:[1] The shell of Powelliphanta spedeni reaches a maximum size of 40 mm.

[2] Powelliphanta spedeni produces an egg up to the size of 11.5 mm.

This Rhytididae-related article is a stub.