Arby is an uncommon given name of American origin, derived from the surname 'Arabia', which was coined by a New York clothing merchant in the late 19th century. The name gained popularity through the fast-food restaurant chain Arby's, founded by Forrest and Leon Raffel in Boardman, Ohio, in 1964.
"The name Arby experienced varied popularity over the years, with peaks in the mid-1940s and early 1950s, but has since become less common."