Ong is a Hokkien romanization of several Chinese surnames: 王 (Wáng in Hanyu Pinyin), 汪 (also Wāng), 黃 (traditional) or 黄 (simplified; Huáng); and 翁 (Weng). Ong is also a Laotian surname. Ong or Onge is also a surname of English origin, with earliest known records found in Western Suffolk taxation records from c. 1280 AD.[1] Ong (or Онгь in Russian language-based records) is also an Estonian surname, possibly derived from õng, meaning "fishing rod/hook".
Ong has also been used to romanize the Taishanese pronunciation of 鄧 (more commonly romanized as Deng or Teng), as in the case of Betty Ong.