Young and Dangerous (Chinese: 古惑仔之人在江湖) is a 1996 Hong Kong crime film about a group of triad members, detailing their adventures and dangers in a Hong Kong Triad society. Directed by the film's cinematographer Andrew Lau, the film features a large ensemble cast, which includes Ekin Cheng, Jordan Chan, Gigi Lai, Jason Chu, Jerry Lamb, Michael Tse, Francis Ng and Simon Yam.

Based on a popular comic book series named "Guwak Tsai" or "Teddy Boy" in English. This film contributed a lot to the public image of triads and was condemned by certain quarters as glorifying secret triad societies. However, it was immensely popular in Hong Kong and spun a long list of sequels and spin-offs. Its main actors and actresses have also become major stars in their own right.