Sohye is from the Korean so (소 — small) + hye (혜 — bright, grace). Kim So-hye (Sohye, born 1999) is a Korean K-pop singer and actress — member of the iconic K-pop project group I.O.I (아이오아이, YMC Entertainment, 2016-2017) — formed through the Mnet survival show Produce 101 Season 1 (2016). Korean idol-to-actress transition figure.
Sohye 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 Sohye reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.