Grigsby is a surname of unknown origin (possibly meaning 'of Grig's town/settlement)', stemming from a common progenitor, John Grigsby (1623–1730) who originated in Kent, Maidstone, England where the name is still known. Most Grigsbys in the United States of America trace lines of descent from this 17th-century landowner, in Stafford County, Virginia.
Read more about Grigsby: Famous Grigsbys