瓜尔（学名：Cyamopsis tetragonoloba、Guar），是一年生豆科植物并且是瓜尔豆胶（关华豆胶）的原材料。其最适合生长在多雨的环境下。但也容忍干燥的条件。在印度的产量约占世界产量的80%，然而，由于强烈的需求，该植物也被引入到新的地区。

The Guar or cluster bean, with the botanical name Cyamopsis tetragonoloba, is an annual legume and the source of guar gum. It is also known as Gavar, Guwar or Guvar bean.

The origin of Cyamopsis tetragonoloba is unknown, since it has never been found in the wild. It is assumed to have developed from the African species Cyamopsis senegalesis. It was further domesticated in India and Pakistan, where it has been cultivated for many centuries. Guar grows well in semiarid areas, but frequent rainfall is necessary.