史密斯威森（Smith & Wesson）是美国最大的手枪军械制造商，由美国人贺拉斯·史密斯（Horace Smith）与丹尼尔·威森（Daniel B. Wesson）于1855年创建。总部位于麻萨诸塞州斯普林菲尔德。史密斯威森公司以制造左轮手枪闻名于世。

史密斯威森至创始至今一直是手枪界的领先公司，曾在第二次世界大战中就生产了110万支手枪以供应盟军需求。除了手枪外，该公司也拥有一些如步枪、轻机枪或霰弹枪之类的其他枪枝产品，或以商标授权的方式推出包括刀械、手铐、手电筒在内的诸多周边产品。

Smith & Wesson (S&W) is a manufacturer of firearms and BB guns in the United States. The corporate headquarters is in Springfield, Massachusetts. Founded in 1852, Smith & Wesson's pistols and revolvers have become standard issue to police and armed forces throughout the world, in addition to their popularity among sport shooters. Their revolvers have been featured in numerous Hollywood movies, notably Clint Eastwood's Dirty Harry.