Arya is from the Sanskrit and Old Iranian ārya ("noble, honorable") — a word with deep usage across the Indo-Iranian world; modern Iran's official name Iran derives from this root. Arya Stark — central character of George R.R. The name's surge from 2011 onward (entering the US top-1000 in 2010) is directly attributable to the show — one of the most-documented cases of TV influence on naming in modern US registries. Arya Stark of Winterfell also appears as a name choice for newborn girls across multiple international name registries. Arya is also a Hindu boys'/girls' name; the Sanskrit ārya gave the world Aryabhata (5th-century Indian mathematician and astronomer).
Arya 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.
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In Pythagorean numerology the letters of Arya reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.