List of Famous people born on March 12nd

François-Emmanuel Guignard, comte de Saint-Priest, was a French politician and diplomat during the Ancien Régime and French Revolution.

Hugh Trenchard, 3rd Viscount Trenchard DL is a British soldier and businessman. In 1987, he succeeded to his father's titles. He is one of the ninety hereditary peers in the House of Lords, elected to remain after the passing of the House of Lords Act 1999, sitting as a Conservative.

Mary Lee Berners-Lee was an English mathematician and computer scientist who worked in a team that developed programs in the Department of Computer Science, University of Manchester Mark 1, Ferranti Mark 1 and Mark 1 Star computers. She is the mother of Sir Tim Berners-Lee, the founder of the World Wide Web and Mike Berners-Lee, an English researcher and writer on greenhouse gases.

Friedrich Sellow (1789–1831) was a German botanist and naturalist. He was one of the earliest European scientific explorers of Brazil, and a major collector of Brazilian flora.

Lejzor Szmuel Czyż, best known as Leonard Chess, was a Polish-born American record company executive and the co-founder of Chess Records. He was influential in the development of electric blues, Chicago blues, and rock and roll.