Ninon is a French pet form of Anne, itself from the Hebrew for grace and favour.
It is remembered through Ninon de l'Enclos, the celebrated seventeenth-century French wit and woman of letters, which gives it a spark of intelligence and independence.
Ninon 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 Ninon reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.