杜若（学名：Pollia japonica）是鸭跖草科杜若属的植物。

多年生草本，根状茎长而横走；茎直立，被有柔毛；叶子无柄，长椭圆形叶片，叶鞘无毛；夏季开白色花，蝎尾状聚伞花序集成圆锥花序；蓝黑色球形浆果。

Pollia japonica (Japanese: Yabumyoga, ヤブミョウガ; Chinese: 杜若 ) is a perennial flower native to East Asia. Its niche is forests 0–1200 m. It is native in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, and Sichuan Provinces of China. Also found in ******, Japan, and Korea.