•
Alexander McLachlan (politician) (1872–1956), Australian senator •
Alexander McLachlan (poet) (1818–1896), Scottish-born Canadian poet •
Andrew McLachlan (born 1966), Australian politician, army man and lawyer •
Angus McLachlan (born 1944), Australian pastoralist and former first-class cricketer •
Ben McLachlan (born 1992), New Zealand–Japanese tennis player •
C. Ian McLachlan (born 1942), justice of the Connecticut Supreme Court •
Craig McLachlan (born 1965), Australian actor and singer •
Ed McLachlan (1940–2024), English cartoonist and illustrator •
George McLachlan (1901–1964), Scottish footballer •
Ian McLachlan (born 1936), Australian landowner •
James McLachlan (disambiguation), multiple people •
Jimmy McLachlan, Scottish footballer •
John McLachlan (disambiguation), multiple people •
Jon McLachlan (1949–2024), New Zealand rugby union player •
Laurentia McLachlan (1866–1953), Scottish Benedictine nun •
Mark McLachlan (born 1990), American product and game designer •
Michael A. McLachlan (born 1958), American politician •
Mike McLachlan (1946–2021), American politician •
Robert McLachlan (disambiguation), multiple people •
Roger McLachlan (1954–2025), New Zealand bass guitarist based in Australia •
Sarah McLachlan (born 1968), Canadian musician •
Tanner McLachlan (born 1999), Canadian American football player •
Tom McLachlan (1912–1986), Australian rugby league footballer •
Virginia McLachlan (born 1992), Canadian Paralympic sprinter ==MacLachlan==