Ha-seong Kim is a South Korean professional baseball shortstop for the San Diego Padres of Major League Baseball (MLB). Kim was drafted 41st overall by the Nexen Heroes in the 2014 Korea Baseball Organization Draft. He made his KBO debut with the Heroes in May 2014 and won the KBO Golden Glove Award in 2018, 2019 and 2020. In December 2020, Kim signed with the San Diego Padres, and made his MLB debut in 2021. In 2023, Kim became the first Korean-born player to win a Gold Glove Award.

The posting system is a baseball player transfer system that operates between Korea Baseball Organization (KBO) and the Major League Baseball (MLB). The system is based on the original posting system that was put in place between MLB and Nippon Professional Baseball (NPB) in 1998.