Search gender: all male female Ui Boy Name Meaning, Kanji Variations. 21 names found. gender: all male female Name: ui Katakana: ウイ 0 Kanji: 侑惟 Meaning: 侑To help. Help by covering for. To lend help. To offer to eat or drink. Reward. To thank someone. To forgive. 惟Deliberate You can save your favorite names with prev12 NAZUKE PON > About Japanese Names > Search For Japanese Names > Ui Boy Name Meaning, Kanji Variations.