Black 13 (alsnown as Dangerous Youth) is a 1953 British crime drama film directed by Ken Hughes and starring Peter Reynolds, Rona Anderson, Patrick Barr and John Le Mesurier.

Peter Reynolds' wild-eyed neurotic verges at times on the melodrama madman, and never attracts the sympathy which might have given the film some point.

Appropriate night club asides, enlivened by music and song, provide essential colour, while the climax is at once salutary and sentimentally satisfying.

"[4] Picturegoer wrote: "The trick of blending a thriller into a convincing background of human relations nearly comes off in this taut British film.

"[5] Variety wrote: "Twentieth-Fox seemingly imported this inferior British film for exhibs who lack widescreen ... A cast of unknowns isn't helped either by story or direction in the overlong tale.