Gigi is a French and Italian diminutive of Georgia, Georgina, Virginia, or Giovanna — its specific origin depending on the bearer. Gigi Reyes — Filipina political figure. Princess Gigi, used by various royals. A top-1000 US baby name since 2014.
Gigi 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 Gigi reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.