恐吓从善（英语：Scared Straight Programs）是由美国纽泽西州于1970年代率先施行的青少年再犯预防措施，内容是：带少年犯参观监狱，由受刑人亲身讲述在监狱中的生活是多么恐怖、不堪忍受，以此警惕青少年，若他们坚持走上犯罪生活会面临什么后果。

恐吓从善的基础思想，根源于刑事政策与犯罪学当中的吓阻理论和理性选择理论。

透过电视纪录片的宣传，「恐吓从善」迅速被美国其他州、加拿大、欧洲各国、澳洲傚法使用，直至今日。

Scared Straight! is a 1978 documentary directed by Arnold Shapiro. Narrated by Peter Falk, the subject of the documentary is a group of juvenile delinquents and their three-hour session with actual convicts. Filmed at Rahway State Prison, a group of inmates known as the "lifers" berate, scream at, and terrify the young offenders in an attempt to "scare them straight," (hence the film's title), so that those teenagers will avoid prison life.