This is a list of names in which the gender is unisex; and the usage is Japanese; and the first letter is S.
Shinobu 忍, しのぶ m & f JapaneseFrom Japanese
忍 (shinobu) meaning "endurance, patience", as well as other kanji or kanji combinations having the same pronunciation.
Shion 紫苑, 詩音, しおん f & m JapaneseFrom Japanese
紫苑 (shion) meaning "aster". It can also come from
詩 (shi) meaning "poem" and
音 (on) meaning "sound". Other kanji combinations can form this name as well.
Shun 2 駿, 俊, しゅん f & m JapaneseFrom Japanese
駿 (shun) meaning "fast",
俊 (shun) meaning "talented", or other kanji that are pronounced the same way.
Sora 空, 昊, そら f & m JapaneseFrom Japanese
空 (sora) or
昊 (sora) both meaning "sky". Other kanji with the same pronunciations can also form this name.