锑（拼音：tī，注音：ㄊㄧ，音同「梯」，拉丁语：Stibium，化学符号：Sb）是化学元素，原子序数为51。它是一种有金属光泽的类金属，在自然界中主要存在于硫化物矿物辉锑矿（Sb₂S₃）中。目前已知锑化合物在古代就用作化妆品，金属锑在古代也有记载，但那时却被误认为是铅。大约17世纪时，人们知道了锑是一种化学元素。

几十年以来，中国已成为世界上最大的锑及其化合物生产国，而其中大部分又都产自湖南省***的锡矿山。锑的工业制法是先焙烧，再用碳在高温下还原，或者是直接用金属铁还原辉锑矿。

金属锑最大的用途是与铅和锡制作合金，以及铅酸电池中所用的铅锑合金板。锑与铅和锡制成合金可用来提升焊接材料、子弹及轴承的性能。锑化合物是用途广泛的含氯及含溴阻燃剂的重要添加剂。锑在新兴的微电子技术中也有着它的用途。

Antimony is a chemical element with symbol Sb (from Latin:stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb₂S₃). Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was erroneously identified as lead upon its discovery. In the West, it was first isolated by Vannoccio Biringuccio and described in 1540, although in primitive cultures its powder has been used to cure eye ailments, as also for eye shadow, since time immemorial, and is often referred to by its Arabic name, kohl.