Catherine Macaulay (1731‑1791), English historian

Thomas Babington Macaulay, 1st Baron Macaulay, English poet, historian and Whig politician

David Macaulay, American author and illustrator

Clan MacAulay

Emilie Rose Macaulay, an English novelist

George Macaulay, English cricketer

Macaulay Culkin, American actor

Herbert Macaulay (1864-1946), Nigerian politician

Archie Macaulay, Scottish football player and manager

Cohen-Macaulay ring, mathematical object

Zachary Macaulay (1768 – 1838), Scottish colonial governor

George Macaulay Trevelyan, English historian

Tony Macaulay, Canadian songwriter

Macaulay railway station, Melbourne

John Babington Macaulay Baxter, New Brunswick jurist and politician

Fred MacAulay, Scottish comedian

The Macaulay Institute, a land use research institute based in Aberdeen, Scotland

James Macaulay, doctor and medical official in Upper Canada

John Simcoe Macaulay (1791-1855), another political figure in Upper Canada

Lawrence MacAulay, Canadian politician

Leopold Macaulay, Canadian politician

Macaulay computer algebra system

John MacAulay, Canadian lawyer and Red Cross activist

Francis Sowerby Macaulay, English mathematician

Robert Macaulay, Canadian politician.

Michael Macaulay, South African cricketer

John Macaulay (1792-1857), political figure in Upper Canada

Macaulay brackets

Macaulay is a surname of Irish and Scottish origin, meaning son of Amhlaigh, and may refer to:

George Campbell Macaulay, 1852–1915, Classical scholar (see Herodotus)

Macaulay Duration, special case of bond duration