The Astacus astacus (or noble crayfish, European crayfish, and broad-fingered crayfish) is a species of crayfish in Europe. Like other crayfish, the Astacus astacus lives in fresh water. It can live in streams, rivers, and lakes if it is not polluted. The Astacus astacus can be found living in France, Central Europe, Balkan peninsula, the British Isles, Scandinavia, and western parts of the former Soviet Union. Males can reach 16 cm long and females can reach 12 cm. 