Ardbeg An Oa is a single malt Scotch whisky from the Ardbeg distillery on the Isle of Islay, Scotland. It is named after the Mull of Oa, a rugged headland located near the distillery.
An Oa is a blended whisky, which means that it is made by combining different batches of whisky from the distillery. The whisky is aged for a minimum of 2 years in a combination of ex-bourbon barrels, virgin oak casks, and Pedro Ximenez sherry casks. The aging process gives the whisky a unique flavor profile, with notes of dark chocolate, caramel, and spice, as well as a hint of smokiness. It is bottled at a strength of 46.6% ABV.
 
An Oa is considered a more approachable and easy-drinking whisky when compared to the other offerings of the distillery. It received positive reviews from critics and is considered a good entry-point for those who are new to Islay whiskies.