木瓜是蔷薇科木瓜属（学名：Chaenomeles）落叶灌木，包括毛叶木瓜、贴梗海棠、木瓜海棠等。

木瓜有以下几种：

Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1–3 m tall, in the family Rosaceae. They are native to Japan, Korea, China, Bhutan, and Burma. (Burmese:ချဉ်စော်ကား) These plants are related to the quince (Cydonia oblonga) and the Chinese quince (Pseudocydonia sinensis), differing in the serrated leaves that lack fuzz, and in the flowers, born in clusters, having deciduous sepals and styles that are connate at the base.