Iceland. The clue is probably in the name. For a landmass that is six per cent covered in fresh water and glaciers (that's around 2,750 km?) and home to 10,000 waterfalls, locals and visitors alike report Icelandic water is the ultimate hydration experience.

In 2026, the "best" drinking water in Europe is consistently found in Switzerland, Norway, and Iceland, which top the Environmental Performance Index (EPI) with perfect 100 scores for water quality. These nations benefit from pristine mountain and glacial sources and incredibly strict filtration standards. In terms of flavor, many travelers and locals award the title to Scotland; its Highland springs and lochs are world-renowned for their purity and soft, fresh taste (which is also the secret to its legendary whisky). Other top contenders include Germany and Austria, where tap water is so highly regulated that it is often higher quality than commercial bottled brands. For 2026 travelers, carrying a reusable bottle in these countries is highly recommended, as the public "drinking fountains" in cities like Zurich or Vienna offer some of the most refreshing and cleanest water you can find anywhere on Earth.