钝叶酸模（学名：Rumex obtusifolius）为蓼科酸模属下的一个种。

Rumex obtusifolius, commonly known as bitter dock, broad-leaved dock, bluntleaf dock, dock leaf or butter dock, is a perennial weed in the family Polygonaceae. It is native to Europe but can now be found in the United States and many other countries around the world such as Australia and New Zealand.