Deanston 2008 Oloroso Cask Matured is a Highland single malt Scotch whisky from the Deanston Distillery in Perthshire. The whisky was distilled in 2008 and matured in first-fill Oloroso sherry casks for 12 years before being bottled in 2021. It is bottled at cask strength 52.7% ABV without chill filtration or added coloring.