Sun Jun (Chinese: 孙君; Korean: 손군; born 29 April 1993 in Wangqing County, Yanbian) is a Chinese footballer of Korean descent who currently plays for Yanbian Longding.

Sun Jun started his professional football career in 2012 when he was promoted to Yanbian FC's first team squad.^[1] He would soon go on to establish himself as an integral member within the team and win the 2015 China League One division title as well as promotion to the top tier at the end of the campaign.^[2] On 5 March 2016, Sun made his Chinese Super League debut in the first match of 2016 season against Shanghai Shenhua, in a game that ended in a 1-1 draw.^[3] He would initially be an integral part of the team that was able to ensure the club remain within the league, but his season was blighted by injuries that saw him miss much of the season.^[4] In the following campaign he would finally return back into the team, but he was unable to help the club avoid relegation at the end of the 2017 Chinese Super League campaign.^[5]

Sun would remain with Yanbian FC throughout the 2018 China League One campaign as the club attempted to push for promotion. After an unsuccessful promotion push at the end of the season on 26 February 2019, Yanbian FC was dissolved due to financial difficulties from owing taxes.^[6] On 21 February 2019, Sun transferred to newly-relegated League One side Changchun Yatai.^[7] He would make his debut for the club in a league game on 9 March 2019 against Shanghai Shenxin in a 4-1 victory.^[8] Often used sparingly he would go on to be loaned out to Xi'an Daxing Chongde and then Hebei Zhuoao before joining second tier club Shanghai Jiading Huilong. On 29 March 2023, Sun joined another second tier club in Yanbian Longding.^[9]

Statistics accurate as of match played 31 January 2023.^[10]