Sudan
| Year | Electoral system family | Electoral system for national legislature | Number of tiers | Legislative size (directly elected) | Legislative size (voting members) | Electoral system for the president |
|---|---|---|---|---|---|---|
| 2015 | FPTP | 3 | 450 | 450 | TRS | |
| 2010 | Mixed | Parallel | 3 | 450 | 450 | TRS |
| 2000 | FPTP | 1 | 270 | 360 | TRS | |
| 1996 | Plurality/Majority | FPTP | 1 | 275 | 400 | TRS |
