Albert Deane Grover was an American banjoist, composer, teacher, and prolific inventor of musical parts and accessories for stringed instruments. He was a founding member of the Boston Ideal Banjo, Mandolin and Guitar Club. Grover held over 50 patents for musical instrument parts, and founded the musical accessories company A. D. Grover & Son. His father, Stephen Grover (1820–1885), was a Boston piano maker.