HJM may refer to:
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Heath–Jarrow–Morton framework, a financial model
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Herzog–Jackson Motorsports, a NASCAR team
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Higman-Janko-McKay group, in group theory
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Hans-Joachim Marseille
Hans-Joachim Marseille (; 13 December 1919 – 30 September 1942) was a German Luftwaffe fighter pilot and flying ace during World War II. He is noted for his aerial battles during the North African Campaign and his Bohemian lifestyle. One o ...
, German Fighter Ace
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