Baillieu is a surname. Notable people with the surname include:
Chris Baillieu (born 1949), rowerClive Baillieu, 1st Baron Baillieu (1889–1967), businessman and public servantKate Baillieu (born 1946), heiress and activistMarshall Baillieu (born 1937), politicianMerlyn Baillieu (1900–1982), see Merlyn Myer, philanthropist and co-founder of Myer dynastyTed Baillieu (born 1953), politician, former Premier of VictoriaWilliam Baillieu (1859–1936), financier and politician