Maclaurin or MacLaurin is a surname. Notable people with the surname include:
Colin Maclaurin (1698–1746), Scottish mathematician
Normand MacLaurin (1835–1914), Australian politician and university administrator
Henry Normand MacLaurin (1878–1915), Australian general
Ian MacLaurin, Baron MacLaurin of Knebworth
Richard Cockburn Maclaurin (1870–1920), US physicist and educator