Jojo is a modern American feminine diminutive used by multiple pop superstars. JoJo Levesque (Joanna Noëlle Levesque, born 1990) is an American R&B/pop singer — known for Leave (Get Out) (2004, Billboard #12) and Too Little Too Late (2006). name in 2000s-2020s American pop music.
Jojo 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 Jojo reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.