Colin Maclaurin (; Scottish Gaelic: Cailean MacLabhruinn; February 1698 – 14 June 1746) was a Scottish mathematician who made important contributions to geometry and algebra.
The Maclaurin series, a special case of the Taylor series, is named after him.
Owing to changes in orthography since that time (his name was originally rendered as “M‘Laurine”), his surname is alternatively written MacLaurin.