Sapir (סַפִּיר) is the Hebrew word for "sapphire" — the deep blue gemstone mentioned in the Bible among the stones on the high priest's breastplate.
Sapir is widely used in modern Israel.
Sapir 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 Sapir reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.