偃松（学名：Pinus pumila）是松科松属的植物；别名“爬松”、“矮松”、“千叠松”（东北）。

常绿灌木，树干偃状，新枝密生短毛。叶5针一束，有三棱，树脂道边生，通常为2个，叶鞘脱落；圆锥状卵圆形或卵形的球果，成熟后种鳞不张开或微微张开，种鳞近宽菱形或斜方状宽倒卵形，边缘微向外反曲；种子无翅。

Pinus pumila (common names Siberian dwarf pine, dwarf Siberian pine, dwarf stone pine, Japanese stone pine, or creeping pine) is a native of northeastern Asia, including the islands of Japan. It shares the common name creeping pine with several other plants.