Date of Birth: 
About Hong Seong-hui
- Hong Seong-hui (Korean: ? ??, July 9, 1969) is a South Korean rhythmic gymnast. Hong Seong-hui competed for South Korea in the rhythmic gymnastics individual all-around competition at the 1988 Summer Olympics in Seoul.
- There she was 29th in the preliminary (qualification) round and did not advance to the final.
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