Search gender: all male female Benichi Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: benichi Katakana: ベンイチ 0 Kanji: 勉一 Meaning: 勉Diligence. To exert oneself to the utmost. To work hard at. 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Benichi Name Meaning, Kanji Variations.