Search gender: all male female スイウ Japanese Boy Names Variations. 1 names found. gender: all male female Name: suiu Katakana: スイウ 2 Kanji: 翠雨 Meaning: 翠Kingfisher (bird's name). Jade. Green. 雨Rain. Something that pours down like rain. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > スイウ Japanese Boy Names Variations.