McCallister

McCallister is a surname of Scottish origin, a spelling variant of McAllister. It derives from the Gaelic Mac Alasdair, meaning "son of Alasdair" (the Scottish form of Alexander). The spelling McCallister reflects anglicization and regional pronunciation, and is one of several variants that include McAllister, MacAllister, and McAlister.

Historically concentrated in Scotland and Ulster, the name spread with emigration to North America, Australia, and other regions. In modern times it is found across many professions and public life, including politics, business, athletics, and the arts.

In popular culture, Kevin McCallister is the fictional protagonist of the Home Alone film series, first appearing in 1990. The surname also appears in geographic names—towns, streets, and other features—often named after local families or early settlers.

The variant spellings McAllister and MacAllister are closely related and commonly encountered in English-language usage.