| Sudan People's Defence Forces | |
| War: | Second Sudanese Civil War |
| Active: | 2000 - 2002 |
| Leaders: | Riek Machar Peter Par Jiek |
| Area: | Upper Nile |
| Predecessor: | Deserters from the SSDF |
| Successor: | SPLM/A |
| Battles: | Second Sudanese Civil War |
The Sudan People's Defense Forces/Democratic Front (SPDF) was an anti-government militia active in Upper Nile from 2000 to 2002.
Riek Machar formed the SPDF mostly from deserters of the pro-Khartoum South Sudan Defence Forces (SSDF) and later merged it with the SPLM/A.