Raetic (also Rhaetic, Rhaetian) is an extinct language spoken in the ancient region of Raetia in the Eastern Alps in pre-Roman and Roman times. It is documented by a limited number of short inscriptions (found through Northern Italy and West Austria) in two variants of the Etruscan alphabet. Its linguistic categorization is not clearly established, and it presents a confusing mixture of what appear to be Etruscan, Indo-European, and uncertain other elements.

The ancient Raetic language is not one of the modern Romance languages of the same Alpine region, known as Rhaeto-Romanic—although both are sometimes referred to as "Rhaetian".

The most credible theories are that Raetic was:

Several recent works have claimed a definitive connection with Etruscan.

It is clear that in the centuries leading up to Roman imperial times, the Raetians had at least come under Etruscan influence, as the Raetic inscriptions are written in what appears to be a northern variant of the Etruscan alphabet. The ancient Roman sources mention the Raetic people as being reputedly of Etruscan origin, so there may at least have been some ethnic Etruscans who had settled in the region by that time.