Soin

Soin may refer to:


 * Nishiyama Sōin (1605—1682), a haikai-no-renga poet
 * Roshni Kaur Soin (born 1982), Singaporean-Indian model
 * Sergei Soin (born 1982), Russian ice hockey player
 * Soin (mountain), a mountain in Bavaria, Germany
 * Solln, a neighborhood in Munich, Germany, also known as Soin
 * Westerners (Korean political faction), romanized as Sŏin using McCune–Reischauer romanization