Vaia is from the Modern Greek Βάϊα (Váïa — palm branches) — from Greek vaion (palm-frond). Vaia is one of the Greek feminine names — central to traditional Greek Orthodox heritage. Blessed is He who comes in the name of the Lord!
Vaia 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 Vaia reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.