A cocktail glass is a stemmed glass with an inverted cone bowl, mainly used to serve straight-up cocktails. The term cocktail glass is often used interchangeably with martini glass, despite their differing slightly. Today, the glass is used to serve a variety of cocktails, such as the martini and its variations, Manhattan, Brandy Alexander, pisco sour, Negroni, cosmopolitan, gimlet, and the grasshopper.

A cocktail is an alcoholic mixed drink or non alcoholic mixed drink. Most commonly, a cocktail is a combination of one or more spirits mixed with other ingredients, such as juices, flavored syrups, tonic water, shrubs, and bitters. Cocktails vary widely across regions of the world, and many websites publish both original recipes and their own interpretations of older and more famous cocktails.