Sheba is from the Hebrew Sheba (שְׁבָא — promise / oath). The Queen of Sheba is one of the most- biblical-historical female figures — visiting King Solomon in Jerusalem (1 Kings 10, 2 Chronicles 9) — a episode in Jewish, Christian, Islamic (as Bilqis in the Quran), and Ethiopian religious traditions. In Ethiopian tradition she is Queen Makeda (c.
Sheba 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 Sheba reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.