'Dr. No' may refer to:
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''Dr. No'' (novel), the 1958 James Bond novel by Ian Fleming
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''Dr. No'' (film), the first James Bond film, starring Sean Connery
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''Dr. No'' (soundtrack), the soundtrack for the movie of the same name.
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Julius No, the title character and primary villain of the novel and film
:People who use the name as a nickname
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Ron Paul, a member of the U.S. House of Representatives whose medical degree and frequent dissenting votes earned him the nickname
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Ian Paisley, a member of the Northern Ireland Assembly, whose speeches of old, commonly objecting strongly to the Anglo-Irish Agreement, earned him the nickname
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Joel Wachs, former member of the Los Angeles City Council