Ireland's Favourite Whiskey for your favourite whiskey lover! Jameson Whiskey. Jameson is an iconic brand of Irish whiskey, accounting for nearly 75% of all Irish whiskey sold globally. By combining the traditions of the past with the expertise of the present, they balance the exact proportions of triple distilled pot still whiskeys and then triple distilled grain whiskeys to deliver exceptional smoothness as well as a sweet, nutty flavour from sherry casks with the toasted wood and vanilla notes from Bourbon casks