Maclaurin or MacLaurin (with a capital "L") may refer to:
People with the surname Maclaurin:
- 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
Other:
- Taylor series in mathematics, a special case of which is the Maclaurin series
- Maclaurin (crater), a crater on the Moon