Baily is a surname. Notable people with the surname include:
Bernard Baily (1916–1996), American comic book artistChristina Baily (born 1981), English actressCyril Baily (1880–1924), English cricketerEddie Baily (1925–2010), English footballerEdward Baily (1852–1941), English cricketerEdward Hodges Baily (1788–1867), English sculptorFrancis Baily (1774–1844), English astronomerGavin Baily (born 1971), English artistJaime Bayly (born 1965), Peruvian journalist and television personalityLaurence Richardson Baily (1815–1887), English marine insurance specialistMartin Neil Baily, American economistThomas Baily (c. 1525 – 1591), English Catholic clergymanWilliam Edward Baily (1855–1903), English brewerWilliam Hellier Baily (1819–1888), English palaeontologist