John Dewar was a Scottish whisky distiller, best known for founding the Dewar's brand in the late 19th century. He established the Dewar's distillery in 1846 in Perthshire, Scotland, and his commitment to quality helped popularize blended whisky. Dewar's innovative marketing strategies, including the use of a signature white label, contributed to the brand's success. His legacy continues today, as Dewar's remains one of the most recognized names in the whisky industry, known for its smooth and rich flavors.