| Byun Jae-sub | |
| Birth Date: | 17 September 1975 |
| Youthyears1: | 1993–1997 |
| Youthclubs1: | Jeonju University |
| Years1: | 1997–2003 |
| Years2: | 2004–2006 |
| Years3: | 2007 |
| Clubs1: | Jeonbuk Hyundai Motors |
| Clubs2: | Bucheon SK / Jeju United |
| Clubs3: | Jeonbuk Hyundai Motors |
| Caps1: | 94 |
| Caps2: | 49 |
| Caps3: | 3 |
| Goals1: | 7 |
| Goals2: | 3 |
| Goals3: | 0 |
| Nationalyears1: | 1994 |
| Nationalteam1: | South Korea U-20 |
| Nationalcaps1: | ? |
| Nationalgoals1: | ? |
| Manageryears1: | ? |
| Managerclubs1: | Jeonju University (coach) |
| Pcupdate: | 17 August 2011 |
| Ntupdate: | 17 August 2011 |
| Hangul: | 변재섭 |
| Rr: | Byeon Jaeseop |
| Mr: | Pyŏn Chaesŏp |
Byun Jae-sub (born September 17, 1975) is a South Korean footballer
He graduated in Jeonju University, He was the K-League Top Assistor of 1999 season