Bayliss is a surname. Notable people with the surname include:
Adam Bayliss, film producerAlfred Bayliss, American educational administratorBrendan Bayliss, musicianDavid Bayliss, footballerEdward Bayliss, cricketerGarland Bayliss, American historian and university administratorGeorge Bayliss, Australian Rules footballerJohn Bayliss, poet and editorJonah Bayliss, baseball playerJonathan Bayliss, novelist and playwrightLisa Bayliss, field hockey playerMark Bayliss, Australian Rules footballerRichard Bayliss, English medical doctor and Physician to the QueenSimon Bayliss, musicianTrevor Bayliss, Australian cricketerTroy Bayliss, motorcycle racerWilliam Bayliss, physiologistWyke Bayliss, painter, author, and poetBayliss Levrett, racing driverFictional charactersJim Bayliss/Sue Bayliss, in All My SonsTim Bayliss, a fictional character in TV show Homicide: Life on the Street