Xanthe (Ξανθή) comes from the Greek xanthos, meaning "yellow" or "golden." In Greek myth, Xanthe is one of the Oceanid nymphs.
Xanthe is rare as a given name but rising. The Australian writer Xanthe Mallett is a contemporary bearer.
Xanthe 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 Xanthe reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.