Jiang Jun (Chinese: 江俊; born 28 April 2005) is a Chinese snooker player. In 2019 he became the IBSF World Under-18 Snooker Champion. In 2023 he earned a two-year card on the World Snooker Tour.
Jiang Jun won the 2019 IBSF World Under-18 Snooker Championship in Pingdu, China. In the final he defeated his compatriot Gao Yang.
In January 2023, at the Guangzhou Snooker Championship, Jiang Jun finished as runner up to champion Ma Hai Long in the final.
In March 2023, Jiang Jun reached the quarter-finals of the 2023 ACBS Asian Snooker Championship in Doha.
In April 2023 he won a two-year card on the World Snooker Tour at the first CBSA qualifying tournament, defeating Chen Feilong, Long Zehuang and Luo Zetao, before beating Liu Hongyu 4-2 in the final.
Jun made his professional debut in a draw at the 2023 Championship League held at the Morningside Arena in Leicester, England from 26 June 2023. Aged seventeen years-old, in his opening match in the round-robin phase, he earned a credible 2-2 draw with top-16 ranked Welshman Ryan Day and recorded his first pro-win, against Himanshu Jain. In July 2023 he qualified for the main stages of the European Masters with a 5-1 win over Andrew Pagett. In November 2023, he came from 4-1 down to defeat Jackson Page 6-4 at the 2023 UK Championship. In the first round of qualifying for the 2024 World Snooker Championship he defeated Iranian Amir Sarkhosh 10-6. In the second round, he edged past compatriot Fan Zhengyi 10-8. He then reached the final qualifying round after a 10-8 victory against Sam Craigie.