Isle of Islay

“Isle of Islay” is a stylistic way some independent bottlers signal Islay origin while keeping the distillery name undisclosed. In law, the protected locality is “Islay”; locality/region names may appear with the category only if all the whisky was distilled there, and labels must not mislead about the true place of distillation. “Isle of Islay” wording appears on some releases as descriptive phrasing, but it isn’t a separate legal category—just origin-led branding. 

On Whiskybase, “Isle of Islay” is used as a brand label grouping such undisclosed-origin Islay bottlings. Searching that brand returns multiple entries across bottlers and vintages.