Baillieu is a surname. Notable people with the surname include:
Chris Baillieu (born 1949), English rower Clive Baillieu, 1st Baron Baillieu (1889–1967), Australian rower businessman James Baillieu (born 1968), Australian lawyer Kate Baillieu (born 1946), Australian journalist Marshall Baillieu (born 1937), Australian politician Merlyn Baillieu (1900–1982), Australian philanthropist and co-founder of Myer dynasty Ted Baillieu (born 1953), Australian politician William Baillieu (1859–1936), Australian financier and politician
See also Baillieu Library, University of Melbourne Baillieu Peak Baron Baillieu Bailliu