Haliotis kamtschatkana, common name the northern abalone, threaded abalone, or pinto abalone, is a species of large sea snail, a marine gastropod mollusc in the family Haliotidae, the abalone. It has been listed as endangered by the IUCN Red List of Endangered Species since 2006.

Taxonomy Sometimes two subspecies Haliotis kamtschatkana are recognized, though the World Register of Marine Species treats this species as monotypic:

Haliotis kamtschatkana assimilis Dall, 1878 Haliotis kamtschatkana kamtschatkana Jonas, 1845

The pinto abalone has an adult shell size of approximately 8 cm (3.1 in) but it can rarely grow as large as 15 cm (5.9 in). The rather thin shell is flattened and ear-shaped. The surface is covered with uneven spiral cords, often very indistinct, and strongly elevated undulations or lumps. The columellar shelf is narrow, flattened, and sloping inward. The shell has 3 to 6 elevated respiratory holes. These holes collectively make up what is known as the selenizone which form as the shell grows. The silvery interior of the shell is iridescent. The shell is generally green-brown but can have white or blue coloration and has a somewhat scalloped edge.