Strigiphilus is a genus of chewing lice in the suborder Ischnocera. It was circumscribed in 1910 by Eric Mjöberg.
Mjöberg initially circumscribed Strigiphilus as a subgenus of the genus he referred to as Docophorus (now known as Philopterus).
In a 1966 paper, Theresa Clay recognized 29 species and grouped them into these nine species groups:
Strigiphilus is the only genus of the Ischnocera to exclusively parasitize owls.
, about 50 species of Strigiphilus are known, including Strigiphilus garylarsoni . (cursitans group)