Adele is from the Old Germanic adal ("noble"). Her 21 (2011) was the best-selling album of the 21st century at the time of its release; 25 (2015) was the fastest-selling album in US history. Has performed at the Oscars, the Brit Awards, and Glastonbury.
Subject of countless music industry profiles.
Adele 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 Adele reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.