Ariana has two parallel origins. In Italian, it is the female form of Arianus, ultimately from the Greek Ariadne — "most holy" — the Cretan princess of Greek mythology who helped Theseus through the labyrinth. In Welsh, it derives from arian, meaning "silver."
Ariana entered the U.S. top 1000 in 1979 and has been rising ever since. The singer Ariana Grande, a global pop superstar since the mid-2010s, has kept the name highly visible. Today it sits in the U.S. top 50.
Ariana 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 Ariana reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.