Kwang-su, also spelled Kwang-soo or Gwang-su, is a Korean masculine given name. Its meaning differs based on the hanja used to write each syllable of the name.
There are 13 hanja with the reading "kwang" and 67 hanja with the reading "soo" on the South Korean government's official list of hanja which may be registered for use in given names. Ways of writing this name in hanja include:
光洙 (빛 광 bit gwang, 물가 수 mulga su).
光守 (빛 광 bit gwang, 지킬 수 jikil su). These same characters are also one possible way of writing the Japanese surname and given name Mitsumori.
光秀 (빛 광 bit gwang, 빼어날 수 bbaeeonal su). These same characters are also one possible way of writing the Japanese given name Mitsuhide.
People with this name include:
Film and music
Park Kwang-su (born 1955), South Korean film director
Kim Jho Kwang-soo (born 1965), also known as Peter Kim, South Korean film director
Lee Kwang-soo (born 1985), South Korean actor
Kim Kwang-soo (born 1987), South Korean singer, member of Supernova
Sportspeople
Kim Kwang-soo (volleyball), South Korean volleyball player, represented South Korea at the 1964 Summer Olympics
Oh Kwang-soo (born 1965), South Korean boxer
Back Kwang-soo (born 1978), South Korean rugby union footballer
Cha Kwang-su (born 1979), North Korean Greco-Roman wrestler
Writers
Shin Gwang-su (poet) (1712–1775), late Joseon Dynasty poet
Yi Kwang-su (1892–1950), South Korean writer
Ma Kwang-soo (born 1951) South Korean educator and novelist
Other
Sin Gwang-su (spy) (born 1929), North Korean operative involved in abductions of Japanese citizens
Kim Kwang-soo (born 1954), South Korean biologist
