Siti is from the Malay-Indonesian Siti — from the Arabic Sayyida (lady, mistress). Datuk Sri Siti Nurhaliza Tarudin (born 1979) is a Malaysian singer, songwriter, businesswoman, and television personality — widely considered the greatest Malaysian singer of all time and one of the figures of Southeast Asian pop music. Over 8 million Instagram followers.
Siti 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.
In Pythagorean numerology the letters of Siti reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.