South Korea competed at the 2014 Summer Youth Olympics, in Nanjing, China from 16 August to 28 August 2014.
South Korea qualified two archers from its performance at the 2013 World Archery Youth Championships.
South Korea qualified six athletes.
<small>Qualification Legend: Q=Final A (medal); qB=Final B (non-medal); qC=Final C (non-medal); qD=Final D (non-medal); qE=Final E (non-medal)</small>
South Korea qualified two athletes based on the 2 May 2014 BWF Junior World Rankings.
South Korea qualified one boxer based on its performance at the 2014 AIBA Youth World Championships
South Korea qualified one boat based on its performance at the 2013 World Junior Canoe Sprint and Slalom Championships.
South Korea qualified five athletes based on its performance at the 2014 FIE Cadet World Championships.
South Korea will compete in the boys' tournament.
South Korea qualified one team of two athletes based on the 8 June 2014 IGF Combined World Amateur Golf Rankings.
South Korea qualified two athletes based on its performance at the 2014 Asian Artistic Gymnastics Championships.
South Korea qualified a girls' team based on its performance at the 2013 Asian Youth Games.
South Korea qualified two athletes based on its performance at the 2013 Cadet World Judo Championships.
South Korea qualified two athletes based on its performance at the Asian and Oceania YOG Qualifiers.
South Korea qualified two shooters based on its performance at the 2014 Asian Shooting Championships.
South Korea qualified four swimmers.
South Korea qualified a male athlete based on the ITTF Under-18 World Rankings. Later South Korea qualified a female athlete based on its performance at the Road to Nanjing series.
<small>Qualification Legend: Q=Main Bracket (medal); qB=Consolation Bracket (non-medal)</small>
South Korea qualified one athlete based on its performance at the Taekwondo Qualification Tournament.
South Korea qualified three athletes based on the 9 June 2014 ITF World Junior Rankings.
South Korea qualified two athletes based on its performance at the 2014 Asian Youth Olympic Games Qualifier.
South Korea qualified 1 quota in the boys' events based on the team ranking after the 2014 Weightlifting Youth & Junior Asian Championships.
South Korea qualified one athlete based on its performance at the 2014 Asian Cadet Championships.
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