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What is Conan O’Brien best known for?

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The Editors of Encyclopaedia Britannica

Conan O’Brien is an American comedian and talk show personality. He is best known for hosting Late Night with Conan O’Brien (1993–2009), The Tonight Show (2009–10), and Conan (2010–21). Before hosting late-night shows, O’Brien was a writer for Saturday Night Live and The Simpsons. In 2018 he started the podcast Conan O’Brien Needs a Friend. O’Brien also hosted the Academy Awards ceremony in 2025 and 2026.