FMJ may refer to:

• Full metal jacket bullet, a bullet consisting of a soft core encased in a shell of harder metal
• Full Metal Jacket, a 1987 war film produced, directed and co-written by Stanley Kubrick
• Full Metal Jousting, an American reality television show that debuted on the History Channel
• Funhit Mein Jaari, a Hindi-language television comedy series

This disambiguation page lists articles associated with the title FMJ.
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