Mindel is from the Yiddish מינדל. Mindel is one of the Yiddish feminine names — central to traditional Ashkenazi Jewish heritage. Yiddish feminine name reflecting Ashkenazi Jewish heritage.
Mindel 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.
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In Pythagorean numerology the letters of Mindel reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.