Search gender: all male female サイチ Japanese Boy Names Variations. 21 names found. gender: all male female Name: saichi Katakana: サイチ 0 Kanji: 茶一 Meaning: 茶Tea. Tea ceremony. A drink made from an evergreen shrub of the camellia family and its leaves or berries. Light brown. Attempt at humour. 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 prev12 NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > サイチ Japanese Boy Names Variations.