Sheryl is a 20th-century American variant of Cheryl — itself a blend of Cherie + Beryl.
Subject of countless tech industry profiles.
Sheryl 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 Sheryl reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.