| Joo Jae-Duk | |
| Fullname: | Joo Jae-Duk |
| Birth Date: | 25 July 1985 |
| Birth Place: | South Korea |
| Position: | Goalkeeper |
| Years1: | 2005–2007 |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 2008–2010 |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2011 |
| Caps3: | 0 |
| Goals3: | 0 |
| Hangul: | 주재덕 |
| Hanja: | 周載德 |
| Rr: | Ju Jae-deok |
| Mr: | Chu Chae-tŏk |
Joo Jae-Duk (; born 25 July 1985) is a South Korean football player who formerly played for Gyeongnam FC, Jeonbuk Hyundai Motors and Daegu FC in the K-League.
A reserve goalkeeper, Joo saw little first team play with Gyeongnam FC and latterly Jeonbuk Hyundai Motors. On 4 January 2011, it was announced that he is to join Daegu FC[1] for the 2011 K-League season. However, he was released from the club in July.