Sinta is the Indonesian-Javanese form of Sita — Sanskrit Sītā (furrow). In Indonesian and Javanese tradition, Sinta is the heroine of the Ramayana, the devoted wife of Rama.
Sinta is widely used in Indonesia.
Sinta 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 Sinta reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.