Search gender: all male female Genga Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: genga Katakana: ゲンガ 0 Kanji: 源芽 Meaning: 源Source. The source from which the water of a river flows. The beginning of something happening. 芽A bud. To sprout. A sign that something will happen. Something that is newly born and will grow in the future. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Genga Boy Name Meaning, Kanji Variations.