Jo[hannes] Susay or Jehan Suzay (sometimes written Suzoy or Susoy) (fl. c. 1380; d. after 1411) was a French composer of the Middle Ages. He is the composer of three ballades in the ars subtilior style, all found in the Chantilly Codex: A l'albre sec, Prophilias, un des nobles, and Pictagoras, Jabol et Orpheus. The last ballade is also found in the Boverio Codex, Turin T.III.2, with the more accurate incipit "Pytagoras, Jobal, et Orpheus" . A a three-voice Gloria "in fauxbourdon-like style" found in the Apt codex (ff. 25v/26r) is also attributed to Susay.