Glenfiddich has won the top accolade in the 2007 Whisky Merchants' Challenge Awards.
The distillery's 30-year-old Single Malt Scotch Whisky won through in a blind tasting event as well as receiving a gold medal in the over 50 category.
Glenfiddich's prize whisky also took a gold (best in class) medal at the International Wine & Spirit Competition 2007.
The 30-year-old whisky is a single malt combination that has been matured in Oloroso sherry and bourbon casks.
David Stewart, Glenfiddich Malt Master, commented: "We've always believed Glenfiddich 30 Year Old to be an excellent dram, but to have such esteemed judges vote it the overall winner in a blind tasting in our homeland is a real thrill.
"It really has been a remarkable year of achievement for the men and women of the distillery."
Glenfiddich Distillery recently won the award for Scottish Visitor Attraction of the Year 2007 - it attracts around 80,000 visitors a year.