Jong-hyun is a Korean masculine given name. Its meaning differs based on the hanja used to write each syllable of the name. There are 19 hanja with the reading "jong" and 25 hanja with the reading "hyun" on the South Korean government's official list of hanja which may be registered for use in given names.
People with this name include:
Entertainers
Hong Jong-hyun (born 1990), South Korean actor
Kim Jong-hyun (singer) (born 1990), South Korean idol and singer, member of South Korean boy band SHINee
Lee Jong-hyun (born 1990), South Korean singer and actor; member of rock band CNBLUE
Kim Jonghyun (born 1995), South Korean singer and rapper; member of K-pop band NU'EST
Choi Jong-hyun (born 1995), South Korean Singer; member of K-pop band Teen Top
Football players
Sung Jong-hyun (born 1979), South Korean football defender
Lee Jong-hyun (footballer) (born 1987), South Korean football midfielder
Yoo Jong-hyun (born 1988), South Korean football defender
Je Jong-hyun (born 1991), South Korean football goalkeeper
Other sportspeople
Lee Jong-hyun (born 1930), South Korean sport shooter
Pak Jong-hyeon (born 1938), South Korean cyclist
Hwang Jong-hyun (born 1975), South Korean field hockey player
Jang Jong-hyun (born 1984), South Korean field hockey player
Kim Jong-hyun (sport shooter) (born 1985), South Korean sport shooter
Lee Jong-hyun (basketball) (born 1994), South Korean basketball player