琴酒（英语：Gin，荷兰语：Jenever），又称为毡酒（香港）或琴酒（**），是一种以谷物为原料经发酵与蒸馏制造出的中性烈酒基底，增添以杜松子为主的多种药材与香料调味后，所制造出来的一种西洋蒸馏酒。

琴酒的外文原名源自于它主要调味成分之一的杜松子，因此也经常被称为杜松子酒，但并不是所有的琴酒都是以杜松子作为主要调味，例如：较少见的黑刺李琴酒（Sloe Gin）就不适合以「杜松子酒」称呼之。常用译名之一的「琴」酒是英语「gin」字在上海话中的音译，而「金」的译法则起源于国语的直译。

Gin is a spirit which derives its predominant flavour from juniper berries (Juniperus communis). From its earliest origins in the Middle Ages, gin has evolved over the course of a millennium from a herbal medicine to an object of commerce in the spirits industry. Gin was developed on the basis of the older jenever, and became popular in Great Britain when William of Orange, leader of the Dutch Republic, occupied the English, Scottish and Irish thrones with his wife Mary. Gin is one of the broadest categories of spirits, represented by products of various origins, styles, and flavour profiles that all revolve around juniper as a common ingredient.