Glenfiddich is a Speyside single malt Scotch whisky owned and produced by William Grant & Sons in Dufftown, Scotland. Glenfiddich means ‘Valley of the Deer' in Scottish Gaelic, hence the presence of a stag symbol on Glenfiddich bottles. W. Grant & Sons was one of the first distilleries to package its bottles in tubes and gift tins, as well as recognising the importance of the duty-free market for spirits. This marketing strategy was successful, and Glenfiddich has now become the world's best-selling single malt.

Speyside is an area around the River Spey in Moray and Badenoch and Strathspey, in northeastern Scotland. The term Strathspey usually refers to the upper part of the strath from the source of the Spey down to the capital, Grantown-on-Spey, whereas the anglicised form, Speyside, refers to the area from Grantown-on-Spey to the mouth of the river at Spey Bay. Recently there has been some controversy over attempts to anglicise the name into Spey Valley. The tourist area from the south starts at Dalwhinnie and continues North along the A9 towards Newtonmore, Kingussie, Aviemore and on towards Grantown-on-Spey. Speyside has the greatest number of distilleries of any of the whisky-producing areas of Scotland.