The Ligurian language was spoken in pre-Roman times and into the Roman era by an ancient people known as the Ligures.
Very little is known about this language which is generally believed to have been Indo-European.

Links:

• Ligurian language on the map 1000BC. If you don’t see the Ligurian populated areas, switch the map base layer to ‘political boundaries’.
• Ligurian language at WikiVerb