Kim Won-il (; born 18 October 1986) is a South Korean former footballer who plays as a defender.
He was educated at Gimpo Elementary School, Tongjin Middle and High Schools, and Soongsil University. Kim is a veteran of the Republic of Korea Marine Corps
Kim Won-Il was a starter for Pohang Steelers in the 2013 K League 1 season. He was an integral part as in the last match of the season, he scored the league-winning goal against Ulsan Hyundai in a goal-mouth scramble in injury time.