Cher is the French word for "dear, beloved." Cherilyn Sarkisian (born 1946) — known mononymously as Cher — the American singer-actress whose career spans more than six decades and made her the only solo artist to have a Billboard Hot 100 #1 hit in every decade from the 1960s to the 2020s. Lifetime sales over 100 million records.
Cher 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 Cher reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.