Haiti
| 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 |
|---|---|---|---|---|---|---|
| 2021 | Plurality/Majority | TRS | 1 | TRS | ||
| 2015 | Plurality/Majority | TRS | 1 | 119 | 119 | TRS |
| 2011 | Plurality/Majority | TRS | 1 | 95 | 99 | TRS |
| 2006 | Plurality/Majority | TRS | 1 | 98 | 98 | TRS |
| 2000 | Plurality/Majority | TRS | 1 | 83 | 83 | TRS |
| 1995 | Plurality/Majority | TRS | 1 | 83 | 83 | TRS |
