Jeong Jae-gun (Korean: 정재군; Hanja: 郑在健, born 22 November 1976)[1] is a South Korean para-badminton player.

He competed at the 2024 Summer Paralympics, where he reached the gold medal match of the men's doubles WH1–WH2 event with Yu Soo-young.

[2][3] Jeong became disabled in 2007 after suffering a spinal fracture while working.

He started exercising while hanging out with disabled badminton players at a rehabilitation hospital.

[4] Men's doubles WH1–WH2 Men's singles WH1 Men's doubles WH1–WH2 The BWF Para Badminton World Circuit – Grade 2, Level 1, 2 and 3 tournaments has been sanctioned by the Badminton World Federation from 2022.