Here is the complete list of Japanese boy names with most common kanji (Japanese characters) used, and name meanings: AKI meaning "bright / autumn" (明 / 秋) - Japanese unisex name. AKIHIRO meaning "great brightness" (明宏) - Japanese boy name. AKIO meaning "bright man" (昭夫) - Japanese boy name.What are popular boy names in Japan?
Japanese Boys' Names. Until a generation or two ago, the most popular class of boys' names were birth order names: Taro (first), Jiro (second), Saburo (third), Shiro (fourth), Goro (fifth). Taro got so much play that it's a generic suffix for "boy" now.