Introduction

Gao (Chinese: 高) is an East Asian surname of Chinese origin that can be literally translated as "high" or "tall". There are approximately 16 million living people with this surname. Some places, such as Taiwan, usually romanise this family name into Kao. In Hong Kong, it is romanized to Ko. In Macau, it is romanized to Kou.
 

Dialect or Format	Transliteration or Pronunciation
Mandarin	Gāo (Hanyu pinyin); Kao1 (Wade-Giles)
Cantonese	Gou1 (Jyutping)
Minnan	Ko (Peh-oe-ji)
Japanese	Kō
Vietnamese	Cao
Korean	Ko (McCune–Reischauer), Go (Revised Romanization)