Crosby surname meaning

Crosby is an English habitational surname from places named with Old Norse kross, “cross,” plus bȳ, “farm” or “settlement.” Such localities appear in Lancashire, Cumberland, Westmorland, North Yorkshire, and Lincolnshire. Crosbie is a frequent Scottish and Irish spelling of the same name. Separately, some Irish families adopted Crosby for Gaelic Mac an Chrosáin. Place is high confidence for the dominant English toponymic origin; the Irish Gaelic adoption is a real but secondary stream that does not overturn the catalog type.