希腊语族是印欧语系下属语族之一。一般来说，希腊语族只包括希腊语一种语言 I。但一些语言学家认为希腊语可以拆分为多种语言。

Hellenic is the branch of the Indo-European language family that includes Greek. In most classifications, Hellenic consists of Greek alone, but some linguists use the term Hellenic to refer to a group consisting of Greek proper and other varieties thought to be related but different enough to be separate languages, either among ancient neighbouring languages or among modern spoken dialects.