Kim Sung-hwan (김성환), a.k.a. Kim Seong-hwan, Kim Sǒng-hwan may refer to:
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Kim Seong-hwan (pen name ''Gobau''; born 1932), Korean cartoonist
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Kim Sung-hwan (diplomat) (born 1953), South Korean foreign minister and diplomat
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Kim Sung-hwan (footballer) (born 1986), South Korean footballer
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Kim Sung-hwan (politician), South Korean politician
{{hndis, Kim, Sung-hwan