William Milne

William Milne may refer to:


 * William Milne (missionary) (1785–1822), British Protestant missionary to China
 * Sir William Milne (politician) (1822–1895), South Australian wine merchant and politician
 * William Milne (sport shooter) (born 1852), British sport shooter
 * William J. Milne (educator) (1843–1914), American educator and administrator
 * William Johnstone Milne (1892–1917), Canadian soldier
 * William Milne (rugby union), Scottish rugby union player
 * Billy Milne (1895–1975), Scottish footballer
 * Willie Milne (1951–2023), Scottish golfer
 * William Grant Milne (?–1866), Scottish botanist
 * William Charles Milne, missionary to China
 * Ross Milne (Canadian politician) (William Ross Milne), Canadian politician
 * Sandy Milne (William Alexander Milne, born 1920), Scottish nationalist politician