Top 10 Distilleries on Islay
Islay is a small island — twenty-five miles long, fifteen wide — off the west coast of Scotland, and it contains the highest concentration of legendary peated whisky distilleries in the world. Nine are currently active; a tenth, Portintruan from Elixir Distillers, is filling its first casks. The island's whisky character derives from coastal peat heavy in seaweed and decayed vegetation, soft water filtered through that same peat, and the relentless Atlantic weather that drives slow, salt-tinged maturation.
1. Ardbeg
Founded 1815 in Port Ellen, Ardbeg is the most heavily peated of the major Islay distilleries — typically around 55 ppm phenol in the malt. The 10 Year Old, Uigeadail, and Corryvreckan form the core range; the annual Ardbeg Day release is a collector's event. Ardbeg retains worm-tub condensers, producing a heavier, more medicinal new-make.
2. Lagavulin
Founded 1816, Lagavulin produces the most refined heavily peated style on Islay. The 16 Year Old is one of the great benchmarks of mature peated whisky — peat smoke, iodine, dried fruit, sea air. The Distillers Edition (Pedro Ximénez finished) and the 8 Year Old complement the flagship.
3. Laphroaig
Laphroaig, founded 1815, is the third of the south-shore "Kildalton trio." It retains its own floor maltings (supplying about 20% of malt requirement) and burns local Islay peat that produces the distinctive medicinal, TCP, and bandage character of Laphroaig 10. The Quarter Cask, Lore, and 25 Year Old expand the range.
4. Bowmore
Founded 1779, Bowmore is the oldest active distillery on Islay and one of the oldest in Scotland. It sits in the centre of the island on Loch Indaal and operates partial floor maltings. The house style is medium-peat, balanced, often with sherry influence. The legendary Bowmore expressions from the 1960s are considered some of the finest single malts ever bottled.
5. Bunnahabhain
Bunnahabhain ("BOO-nuh-HAH-vin"), founded 1881 on the Sound of Islay, breaks the rule: most of its production is unpeated. The 12 Year Old and Stiùireadair are sherry-influenced, lightly maritime, gentle. The peated Toiteach and Stiùireadair Peated expressions show the alternative side. A favourite among drinkers who find the rest of Islay too aggressive.
6. Caol Ila
Caol Ila is the largest Islay distillery by volume, producing primarily for Diageo's blends (notably Johnnie Walker). The 12 Year Old single malt — medium peated (around 35 ppm), grassy, lemon-citrus, with classic coastal smoke — is excellent value. The Distillers Edition (Moscatel finish) and 25 Year Old are the premium expressions.
7. Bruichladdich
Bruichladdich, founded 1881, was reborn in 2001 under the late Jim McEwan after a long closure. The three brands — Bruichladdich (unpeated, terroir-focused), Port Charlotte (heavily peated), and Octomore (super-heavily peated, the world's most heavily peated whisky) — explore the extremes of Islay style. Bruichladdich champions Islay-grown barley and detailed provenance reporting.
8. Kilchoman
Kilchoman, founded 2005 in a farm at Rockside, is Islay's "farm distillery" — the first new Islay distillery in 124 years when it opened. Approximately 30% of production uses 100% Islay-grown barley malted on site (the 100% Islay range); the rest uses bought-in malted barley peated at Port Ellen. Machir Bay, Sanaig, and Loch Gorm are the core expressions.
9. Ardnahoe
Ardnahoe opened in 2018 on the north-east coast as the ninth active Islay distillery. Owned by independent bottler Hunter Laing, it uses the longest lyne arms of any Islay distillery — designed to produce a lighter, fruitier peated spirit than the brooding southern Islays. First single malt releases began appearing in 2024.
10. Port Ellen (revived)
Port Ellen distillery, mothballed in 1983, was reopened by Diageo in 2024 after a complete restoration. The site retains the original kiln pagodas and the old warehouses (where stocks from the 1970s-80s are still maturing — the famously expensive Port Ellen Annual Releases). New-make production resumed in 2024; the first new whisky is expected around 2032. Tours of the restored distillery are now bookable.
Keep exploring
All ten Islay distilleries — south-shore Kildalton trio, the central Loch Indaal cluster, and the north-east coast — are marked on the interactive map. The geography of Islay's whisky is essentially a coastal circuit, walkable or cyclable between sites in fair weather.