Cyrene (Κυρήνη) is the Greek word for "sovereign queen." The Thessalian princess and huntress who, when seen wrestling a lion bare-handed by Apollo, was carried by him to Libya — where she founded the city of Cyrene and became its first queen.
Featured in Pindar's Pythian Ode 9 and Callimachus's Hymn to Apollo.
Cyrene 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 Cyrene reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.