马尾松（学名：Pinus massoniana（亦称山松））是松科松属的植物。

常绿乔木，高可达40米；叶子细柔，2针一束；圆锥状卵形球果；种子有翅。

Pinus massoniana (English: Masson's pine, Chinese red pine, horsetail pine; Chinese: 马尾松) is a species of pine, native to ******, and a wide area of central and southern China, including Hong Kong, and northern Vietnam, growing at low to moderate altitudes, mostly below 1,500 m but rarely up to 2,000 m altitude.