what nationality is the name koh
Ko (Korean surname) Ko (surname) redirects here. For the Chinese surname romanized to Ko in Hong Kong, see Gao (surname). Ko (é«|é«), also variously romanized Go, Koh, or Goh, is a common Korean family name. As of the 2000 South Korean census, there were 435,000 Kos in South Korea, accounting for just under 1% of the population.