Huxley is from the Old English place name in Cheshire — historically a surname. Kennedy and C.S. Lewis (November 22, 1963). The Huxleys are one of the most-distinguished intellectual dynasties in modern English history.
Huxley 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 Huxley reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.