碱蓬属（学名：Suaeda）是藜科下的一个属，为一年生或多年生草本或半灌木植物。该属共有约100余种，分布于世界各地的海滨、荒漠、湖边及盐碱土地区。

Suaeda is a genus of plants also known as seepweeds and seablites. Most species are confined to saline or alkaline soil habitats, such as coastal salt-flats and tidal wetlands. Many species have thick, succulent leaves, a characteristic seen in various plant genera that thrive in salty habitats (halophile plants).