From Welsh, meaning "gentle," "kind," or "mild."
Tirion is a Welsh adjective-turned-given-name meaning 'gentle,' 'kind,' or 'tender-hearted.' It belongs to a tradition of Welsh names drawn directly from virtue words — the language's soft consonant clusters lending an almost musical quality to the concept of gentleness itself. The root connects to the broader Celtic linguistic family's tendency to encode emotional temperament into personal names, a tradition shared with Irish and Breton naming customs.
R. Tolkien, who named the great Elvish city Tirion upon Túna in The Silmarillion — a gleaming white city on a green hill in the Blessed Realm of Valinor. Tolkien, a philologist deeply in love with Welsh phonology, almost certainly drew on the Welsh word, giving the name associations of ethereal beauty, civilisation at its peak, and a longing for something perfect and irretrievably distant.
In contemporary usage Tirion remains rare outside Wales, which only adds to its appeal for parents seeking a name that sounds unmistakably distinctive in English-speaking rooms yet carries genuine linguistic heritage. Its soft tones and the layers of both Celtic virtue and Tolkienian mythology make it a quietly remarkable choice — a name that rewards anyone who asks about its origins.