恋少年（Hebephilia）是一种对青春期前期的少男少女有长期性偏好的倾向。依性别分类，恋少年的年龄偏好下限是11、12岁以上的男孩和10、11岁以上的女孩，上限则都是14岁。英语中的恋少年（Hebephilia）和恋青少年（Ephebophilia）一词常被混淆，两者的指涉对象不同，恋青少年偏好的年龄层为青春期中、后期的青少年；恋童癖（Pedophilia）指的是对青春期前的儿童有性偏好者，而少年爱（Pederasty）则专指成年男子和少年（12-17岁或14-17岁）之间的情爱关系或风俗制度。

Hebephilia is the strong and persistent adult sexual interest in pubescent (early adolescent) individuals, typically ages 11–14 (see the Tanner stage). It differs from ephebophilia, which is the strong and persistent sexual interest to those in later adolescence, approximately 15–19 years old, and from pedophilia, which is the primary or exclusive sexual attraction to prepubescent children. While individuals with a sexual preference for adults may have some sexual interest in pubescent-aged individuals, researchers and clinical diagnoses have proposed that hebephilia is characterized by a sexual preference for pubescent rather than adult partners.