Suhayla (سهيلة) is the feminine of Suhayl, the Arabic name for the bright star Canopus — second-brightest in the night sky, navigation star of Arab seafarers crossing the Indian Ocean. Means "smooth, gentle."
Used widely across the Arab world.
Suhayla 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 Suhayla reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.