Family name שיאה (Shea 
, שיאה 
) , throughout the world, is a common last name. The family name שיאה is characteristic of Ireland, where it is quite a common surname, Bermuda, and Hong Kong (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, Canada, and Ireland. Much less frequently, שיאה is the forename as well as the last name.