Sloan is from the Irish Sluaghadhán (warrior, raider) — historically a male Irish surname; now overwhelmingly a feminine given name in modern US naming. A top-500 US baby name since 2014. The name has surged dramatically — entering the US top-1000 in 2014 and rising into the top-500 by 2020. Sir Hans Sloane himself was the inventor of milk chocolate (1689). Sloan Sigman — American social media personality. Sloan Crosley — American essayist.
Sloan 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 Sloan reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.