Neolipoptena ferrisi, or the Pacific deer ked, is a species of fly from the family Hippoboscidae.

They are found from British Columbia, Canada, to Baja California, Mexico.

The larva feeds on the secretions of a milk gland in the uterus of the female.

After three larval instars, a white pre-pupa which immediately forms a hard dark puparium.

This article related to members of the fly superfamily Hippoboscoidea is a stub.