Squalus nasutus, the western longnose spurdog, is a dogfish of the family Squalidae, found on the continental shelf off the northwest and southwest coasts of Western Australia, at depths between 300 and 510 m. Its length is at least 55 cm.

A short medial barbel is on the anterior nasal flaps.

[3] Coloration is light grey above, paler below, with no white spots.

The pale dorsal fins have dusky tips and posterior margins.

A dark blotch is seen on part of the caudal fin's posterior margin.