Tirion is from the Welsh Tirion — gentle, kind, serene, mild. Tirion is one of the Welsh feminine + unisex names — central to traditional Welsh cultural heritage. Welsh prose collection) Welsh-language post-1967 revival heritage. Welsh feminine name reflecting Celtic Indigenous heritage.
Tirion does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Tirion reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.