Search gender: all male female Umako Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: umako Katakana: ウマコ 0 Kanji: 馬子 Meaning: 馬Horse. A metaphor for something big. A metaphor for something lowly. 子Children You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Umako Name Meaning, Kanji Variations.