The following are notable Old Carthusians, who are former pupils of Charterhouse (founded in 1611).

Politicians

MPs

Political scholars, activists, and others

Royalty

Nobility

Royal household and ceremonial positions

Colonial administration

Diplomats

Civil servants

Businesspeople

Economists, financiers and bankers

Academics

Education leaders

Scientists

Engineers

Physicians

Philosophers

Historians and antiquaries

Judges, barristers, and lawyers

Military

Religion and theologians

Writers, novelists, and poets

Actors

Journalists and presenters

Media producers and directors

Artists

Architects

Musicians and composers

Sportspeople

Cricketers

Other sports

Adventurers, explorers, and colonists

Others

Fictional Old Carthusians