假马齿苋属（学名：Bacopa）是玄参科下的一个属，为草本植物。该属共有65种，分布于热带和亚热带。

Bacopa is a genus of 70–100 aquatic plants belonging to the family Plantaginaceae. It is commonly known as Waterhyssop (or Water Hyssop, though this is more misleading as Bacopa is not very closely related to hyssop but simply has a somewhat similar appearance).