Search gender: all male female セイジ Japanese Boy Names Variations. 201 names found. gender: all male female Name: seiji Katakana: セイジ 0 Kanji: 青治 Meaning: 青Blue. A general term for blue, such as indigo and navy blue. A metaphor for youthfulness. Immaturity. 治Govern. Manage. Quell. Judge. Correct. To adjust. To cure illness or injury. To treat. To compare. To help. To flourish. You can save your favorite names with prev1…7891011 NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > セイジ Japanese Boy Names Variations.