- Celts settled much of Western and Central Europe, including the British Isles, France, Spain, Portugal, and much of Central Europe.
- They expanded into Southeast Europe, occupying parts of Greece, Albania, Croatia, and Turkey.
- In Western Europe, they reached as far north as the Rhine River and as far south as the Pyrenees.
Mediterrenean:
- Celts had a particularly significant presence in Asia Minor, where they founded the kingdom of Galatia.
- Greek and Roman sources tell of Celts fighting as far east as the Balkans, Greece, and even present-day Turkey and the Middle East.