See main article: 2012 Korea Open.
María José Martínez Sánchez was the defending champion, but lost to Ekaterina Makarova in the quarterfinals.
Caroline Wozniacki won the title, defeating Kaia Kanepi in the final, 6–1, 6–0. This was the first title in 13 months for the former World No. 1 and her first of 2012.