John Ro Myung (ur. 24 stycznia 1967 w Chicago w stanie Illinois w USA) – amerykański muzyk, kompozytor i instrumentalista. Uczęszczał do szkoły muzycznej Berklee College of Music w Bostonie. Basista progresywnometalowej grupy muzycznej Dream Theater. Znany również ze współpracy z Gordian Knot, The Jelly Jam czy Platypus.
Instrumentarium Gitary MusicMan Bongo 5/6 HS Basses 12 String Grand Chapman Stick Four String Fender Jazz Bass Guitar Four String Spector Bass Guitar Six String Bass Guitar Tung Wingbass II Bolt-on Six string Bass Guitar Tung Wingbass II Hybrid Hamer Acoustic Bass Guitar Six String Fretless Bass Guitar Yamaha TRB Six String Fretted Bass Guitar Yamaha TRB Six String Bass Guitar signature RBX-6JM Yamaha Turquoise Blue Six String Bass Guitar signature RBX-6JM Yamaha Ruby Red Six String Bass Guitar signature RBX-JM2 Yamaha Inca Silver Six String Bass Guitar signature RBX-JM2 Yamaha Plum Purple Five String Bass Guitar MusicMan Stingray Eight String Bass Guitar Hamer Struny i kostki gitarowe Ernie Ball Roundwound Nickel Bass Strings D’Addario EXL170-6 Strings (.032, .045, .065, .085, .105, .130) Dunlop Tortex Triangle Picks Efekty gitarowe i inne Fractal Audio Axe-Fx Ultra Fractal Audio MFC-101 MIDI Foot Controller Moog Taurus 3 Bass Pedals Little Labs IPB Jr.