Etymology: Derived from Japanese numerals or Sino-Japanese roots where 'ichi' (one) is expressed through kanji like '一'. The name Uno can be written with kanji such as 宇野 (universe field), which is more common as a surname, or 羽野, but when used as a feminine given name, it may use creative or phonetic kanji combinations emphasizing meaning like 'one' or 'unity'.