J.C. Deagan, Inc. is a former musical instrument manufacturing company that developed and produced instruments from the late 19th- to mid-20th century. The company was founded in 1880 by John Calhoun Deagan and initially manufactured glockenspiels. It was noted for its development of the xylophone, vibraharp, organ chimes, aluminum chimes, aluminum harp, Swiss handbells, the marimba, orchestra bells, and marimbaphone. Church bells were revolutionized by Deagan through his design of tubular bells, and the NBC chimes were his creation.