钩蛾科（学名：Drepanidae）是鳞翅目的一科，科名取自希腊语“drepan”，意为“镰刀”。因其大部分种类前翅顶角呈钩状，故名。外形与尺蛾科昆虫极为相似。

The Drepanidae is a family of moths with about 660 species described worldwide. They are generally divided in three subfamilies (Minet and Scoble, 1999;) which share the same type of hearing organ. Thyatirinae, previously often placed in their own family, bear a superficial resemblance to Noctuidae. Many species in the Drepanid family have a distinctively hook-shaped apex to the forewing, leading to their common name of hook-tips.