Search gender: all male female ニコライ Japanese Boy Names Variations. 1 names found. gender: all male female Name: nikorai Katakana: ニコライ 0 Kanji: 二古礼 Meaning: 二Two, The second. Kanji character for the number 2 (two).The next. Again. Another. Different. 古Old 礼Courtesy. A form of behavior to be observed in social life. Respect. A feeling of gratitude. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ニコライ Japanese Boy Names Variations.