William Grant & Sons Ltd. is an independent, family-owned Scottish company which distills Scotch whisky and other selected categories of spirits. It was established in 1887 by William Grant, and is now run by the descendants of the founder. It is the largest of the handful of Scotch whisky distillers remaining in family ownership. "William Grant & Sons" is often abbreviated to "W. Grant & Sons" or just "Grant's", after their blended whisky of the same name.

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.