Cynane (Κυνάνη, c. 358-323 BCE) was the half-sister of Alexander the Great — daughter of Philip II of Macedon by his Illyrian wife Audata.
Cynane 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 Cynane reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.