Minnie is a diminutive of Wilhelmina, Mary, or Minerva — variously from the Germanic willa (will) + helma (helmet, protection) or the Hebrew Mary. Died of breast cancer at 31. Minnie Mouse (Walt Disney, 1928) is among the most globally recognized cartoon characters.
Minnie 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 Minnie reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.