蒲草（英语：bulrush, bullrush）是许多草本植物的通用俗名。就像芦苇一样，许多生长在淡水河边、沼泽湿地的草本水生植物，都被称为蒲草，最常被用来称呼莎草科与香蒲科的植物。蒲草通常被视为是杂草，但也被用来作为织绳、织席、制作草鞋之用，甚至可以被用来制船。

在《出埃及记》中，摩西出生时，有个蒲草箱的故事。因为故事发生在尼罗河边，在此处所说的蒲草，可能是指纸莎草。

Bulrushes is the vernacular name, tules is a local moniker, and buggy whips is slang for several large wetland grass-like plants in the sedge family (Cyperaceae).

The name is particularly applied to several sedge family genera:

Outside of the sedge family, the name is used for Typha, a genus in the Typhaceae family. The Botanical Society of Britain and Ireland recommends "bulrush" as a common name for plants in the genus Typha. However, these species are widely known as reed mace in the United Kingdom.