Quenya is the Elvish language most associated with the Eldar in J.R.R. Tolkien’s works.
Tolkien developed Quenya as a constructed language influenced especially by Finnish, along with elements from Greek and Latin. In his fictional history, it was an ancient language of the Elves and remained important in formal, poetic, and ceremonial contexts.
Sindarin is another major Elvish language, and it became more widely used in everyday life by many Elves in Middle-earth. That distinction causes a frequent mix-up: Quenya is not the only Elvish language Tolkien created, but it is one of the best developed and most prominent.
Tolkien’s interest in language came before his major stories. He designed languages for their sounds, grammar, and historical relationships, then built legends and cultures around them. This method helped make Middle-earth feel like a world with a deep linguistic past.