McKean is an uncommon Irish surname and given name, derived from the Scottish-Gaelic 'MacEan' or 'MacAonghusa,' which means 'son of Angus.' It is often anglicized to McKane or McCann. The name gained prominence in Ireland during the 12th century when it was brought over by Scottish settlers. Today, it's still found predominantly in Ireland and Scotland but has also spread to other parts of the world.
"Mckean is quite rare, with only 5 babies given this name each year since 2002."