沼生水苏（学名：Stachys palustris）为唇形科水苏属下的一个种。

Stachys palustris, commonly known as marsh woundwort, marsh hedgenettle, or hedge-nettle, is an edible perennial grassland herb growing to 80 centimeters tall. It is native to parts of Eurasia but has been introduced to North America.