Search gender: all male female ガン Japanese Boy Names Variations. 2 names found. gender: all male female Name: gan Katakana: ガン 0 Kanji: 雁 Meaning: 雁Geese. Waterfowl of the duck family. Letter. Name: gan Katakana: ガン 0 Kanji: 巌 Meaning: 巌Large stones You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ガン Japanese Boy Names Variations.