Blackie is an English and Scottish surname. Notable people with the surname include:

• Josh Blackie (born 1979), New Zealand rugby union player
• Don Blackie (1882–1955), Australian cricketer
• Ernest Blackie (1867–1943), English Anglican priest
• Fergus Blackie, former justice of the High Court of Zimbabwe and lawyer
• John Stuart Blackie (1809–1895), Scottish scholar
• Sid Blackie (1901-1966), English footballer

• Margaret Mitchell Museum
• Margaret M. Lawrence
• Margaret Moffatt
• Margaret Molloy
• Margaret Montagu Douglas Scott, Duchess of Buccleuch
• Margaret Montagu-Douglas-Scott, Duchess of Buccleuch
• Margaret Montour
• Margaret Moore (novelist)
• Margaret Moore White
• Margaret Moran Dixon McDougall
• Margaret More (1903-1966)
• Margaret More (composer)
• Margaret Morel
• Margaret More Roper
• Margaret Morphew
• Margaret Morse
• Margaret Mortimer, Baroness Mortimer
• Margaret Moser
• Margaret Moser Malone
• Margaret M. O'Shaughnessy Heckler
• Margaret Mostyn
• Margaret M. Perry
• Margaret M. Robinson
• Margaret M. Sullivan
• Margaret M. Thom