Hương is the Vietnamese word for "fragrance." The Perfume River (Sông Hương) runs through Hue, the ancient imperial capital of Vietnam.
Huong is widely used in Vietnam.
Huong 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 Huong reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.