Parnassius przewalskii is a high-altitude butterfly which is found in Tibet and west China.

It is a member of the snow Apollo genus (Parnassius) of the swallowtail family (Papilionidae).

Hindwing with large red basal spot, two large broadly red ocelli, between which there is a black diffuse streak, there being another small black spot between the anterior ocellus and the basal spot; the blackish posterior area projecting tooth-like at apex of cell, sometimes (in female) the cell completely encircled; from the posterior ocellus extends forward and backward a curved band of black spots; close to the margin four black spots filled in with blue, the anterior one sometimes plain black.

Underside like upper, but paler, the anal spots filled in with pale red, the ground of wings brownish.

Pouch of female whitish, encircling the last abdominal segment as a broad half ring, that bladder-shaped, posteriorly acuminate.