Determining Kim Jong-kook's handedness requires some investigation as it's not a widely known fact. There isn't readily available information on whether Kim Jong-kook is left-handed or right-handed through general sources. In the entertainment industry, such details are not always highlighted unless specifically relevant to a particular role or activity.

Kim Jong-kook (김종국), born on April 25, 1976, is a South Korean singer, entertainer, and actor. He debuted as a member of the popular duo Turbo in 1995 and later embarked on a successful solo career, becoming known for his distinctive voice and ballad songs. His musical career has spanned several decades, earning him numerous awards and accolades.

Beyond his music, Kim Jong-kook has gained widespread popularity as a television personality, particularly through his appearances on variety shows such as 'Running Man' and 'Family Outing.' His competitive spirit, physical strength, and humorous interactions with other cast members have made him a beloved figure in South Korean entertainment. He is also known for his dedication to fitness and healthy lifestyle, often sharing workout routines and dietary tips with his fans.

Kim Jong-kook's influence extends beyond his musical and television endeavors. He has become a role model for many, admired for his work ethic, humility, and positive attitude. He continues to be an active presence in the entertainment industry, participating in various projects and maintaining a strong connection with his audience. His longevity and consistent success are a testament to his versatility and enduring appeal. He's considered an icon in the Korean entertainment industry.

It is unknown if Kim Jong-kook is left-handed.