Bavay may refer to:
People Arthur René Jean Baptiste Bavay (1840-1923), French pharmacist, herpetologist and malacologist. Laurent Bavay (born 1972), is a Belgian Egyptologist.
Other Bavay, a French commune. Bavay (surname) Louvignies-Bavay, a former commune in the Nord department in northern France. Houdain-lez-Bavay, a commune in the Nord department in northern France.