• Indo-European languages

• * Aryan race, a 19th century term for Indo-European speakers

• Proto-Indo-European language, the reconstructed common ancestor of all Indo-European languages

• Proto-Indo-Europeans, an ancient ethnic group speaking the Proto-Indo-European language

See also

• Indo-European studies, an academic field

• Proto-Indo-European religion, the hypothetical religion of the Proto-Indo-Europeans

• Pre-Indo-European (disambiguation)