钩蛾亚科（学名：Drepaninae）是鳞翅目钩蛾科的一亚科，本亚科所属钩蛾一般身体狭长，无密毛，一般都有喙，翅缰发达，蛹没有次生刚毛。Drepaninae are by far the largest subfamily of the Drepanidae moths. While it is usually split into two tribes, Drepanini and Oretini, its internal systematics and phylogeny are not well