Caisté

Caisté is a surname of Irish origin. It is an anglicized form of the Gaelic name Ó Caiside, meaning "descendant of Caiside." The personal name Caiside is believed to be derived from the word "cas," meaning "curly." This surname is historically associated with the province of Ulster, particularly in counties Cavan and Fermanagh. Early records indicate the Ó Caiside clan held significant territory and influence in these regions. The surname has spread throughout Ireland and to countries with Irish diaspora, such as the United States, Canada, and Australia. Variations in spelling may exist due to historical anglicization processes. Individuals bearing the Caisté surname may trace their lineage back to this ancient Irish family.