Percy Alexander Hulley (born 23 February 1941) is a South African zoologist and ichthyologist.

[2] He is a research associate at the South African Museum and has described many species of fish including the taillight shark.

[3] Hulley completed his MSc in 1967 from the University of Cape Town with a thesis entitled: Studies on the anatomy of some South African Mytilidae (Bivalvia) with notes on their ecology and distribution.

From 2006, Hulley has worked at the South African Museum in an honorary capacity as a research associate.

[4] The comprehensive Mesopelagic Fish Collection of the South African museum was assembled primarily by Hulley.