Laffan

Laffan is a surname of Irish origin. It is considered an Anglicized form of the Gaelic surname Ó Leathbháin, meaning "descendant of Leathbhán." The given name Leathbhán is composed of the elements leath, meaning "half," and bán, meaning "white" or "fair." Thus, the name could be interpreted as "half-white" or "fair-complexioned."

The surname Laffan is primarily found in the province of Munster, particularly in counties Tipperary and Waterford in Ireland. Variants of the name include Leffan, Laffey, and Lavan (although Lavan may also originate from a different Gaelic source).

Historically, families bearing the Laffan surname were often associated with farming and land ownership in the aforementioned regions of Ireland. Genealogical research may be necessary to determine the specific lineage and connections of individuals with the Laffan surname.