Ascetoaxinus quatsinoensis is a species of saltwater clam, a bivalve mollusc in the family Thyasiridae.

[1] The shell of this species is unusual in that it has a lunule with scalloped edges.

The species was first described by Graham Oliver of the National Museum of Wales and Melissa Frey, curator of invertebrates at the Royal BC Museum.

[2][3][4] The type specimen acquired by the Royal BC Museum was collected from Quatsino Sound, Vancouver Island, British Columbia, Canada.

This bivalve-related article is a stub.