间苯二酚（化学式：C₆H₄(OH)₂），也称雷琐酚、雷琐辛（英文：Resorcin），是苯间位两个氢被羟基取代后形成的化合物。

间苯二酚是白色针状易升华的晶体，可燃，有甜味，露置于空气中变为粉红色。可溶于水、乙醇、戊醇，易溶于甘油、乙醚，难溶于氯仿、苯、二硫化碳。有毒，具刺激性，症状与苯酚中毒症状相似，为头痛、头晕、心动过速、抽搐等。

Resorcinol (or resorcin) is a benzenediol (m-dihydroxybenzene).

It is the 1,3-isomer (or meta-isomer) of benzenediol with the formula C₆H₄(OH)₂. Austrian chemist Heinrich Hlasiwetz (1825–1875) is remembered for his chemical analysis of resorcinol and for his part in the first preparation of resorcinol, along with Ludwig Barth, which was published in 1864.