No.1 is a bourbon cask matured non-age statement release, launched in 2017 as a replacement for the entry-level Small Batch expression during the rebranding of the distillery's core range. Bowmore No.1 is produced using single malt Scotch whisky drawn exclusively from first-fill bourbon casks.

Islay’s oldest working distillery, Bowmore was established in 1779 and is now regarded as one of the most popular malts not only on Islay, but in the whole of Scotland. The distillery was acquired by Stanley P. Morrison in 1963, ushering in an era of iconic single malts, including the legendary Black Bowmore, credited by many as the genesis of whisky collecting, bottled in 1993. The distillery was bought under the control Suntory the year after (they had been stakeholders since 1989), and it remains one of the most collectible brands in Scotch whisky today. Bowmore is one of the few remaining Scottish distilleries to use its own floor maltings, providing them with 40% of their requirements.