Dweller by the cross
Krosby is a modern spelling variant of the English and Scottish surname Crosby. It originally served as a habitational name for someone living near a stone cross or a crossroads, derived from the Old Norse 'kross' and 'byr'.
Less common today
Krosby isn't in the latest US Top 1000. It last peaked at #5,738 in 2015.
Professional soccer player
US births per 5-year period, 1990βpresent (SSA data).