Quetzalli is the Nahuatl word for "precious feather" — referring to the iridescent green tail feathers of the quetzal bird, sacred to the Aztecs and Maya.
Quetzalli is rising in Mexico.
Quetzalli 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 Quetzalli reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.