Kaisun, also Ḵaysuun, Qaysun, Qaysun Llanagaay, or Sealion Town,[3][4] is a former village of the Haida people located on the west side of Moresby Island in Haida Gwaii of the North Coast of British Columbia, Canada.

These names and similar variants derive from Sqaatsigaay ("Bravery Itself"), also called Nañ na’gage skilxa’ogas,[3] one of the headmen of the Qayahl Llaanas who lived in Kaisun.

[3] The Haida of Kaisun learned that "Scots Guy" or "Skotsgai" was a useful name to use when interacting with visiting traders.

The Hudson's Bay Company trader John Work called the village Kish-a-win.

In the 1890s, after suffering further epidemics of smallpox, measles, and other diseases, the survivors in Haina moved to the new mission town of Skidegate, which had displaced the old Haida village of Hlghagilda.