Donya (دنیا) is the Persian and Arabic word for "world" or "this earthly life." Used widely as a feminine name in Iran and Arab world.
Donya is widely used in Iran.
Donya 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 Donya reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.