Secret Agent (Russian: Подвиг разведчика, romanized: Podvig razvedchika) is a 1947 Soviet spy film directed by Boris Barnet and based on the novel The Deed Remains Unknown (Russian: Подвиг остается неизвестным) by Mikhail Maklyarsky. The film stars Pavel Kadochnikov in the leading role. Secret Agent is also known as Secret Mission, Secrets of Counter-Espionage, The Scout's Exploit.

It was the first film about the actions of Soviet intelligence officers behind enemy lines in World War II. The film originated the spy genre in Soviet cinema and had a great influence on all subsequent Soviet spy films, including Seventeen Moments of Spring. It is based on real events from the biography of Nikolai Khokhlov.

The film was the leader of Soviet distribution in 1947 and had 22.73 million viewers.