Search gender: all male female 勉 Japanese Names Variations. 2 names found. gender: all male female Name: ben Katakana: ベン 0 Kanji: 勉 Meaning: 勉Diligence. To exert oneself to the utmost. To work hard at. Name: tsutomu Katakana: ツトム 0 Kanji: 勉 Meaning: 勉Diligence. To exert oneself to the utmost. To work hard at. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 勉 Japanese Names Variations.