Thailand
| 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 |
|---|---|---|---|---|---|---|
| 2023 | Mixed | Parallel | 2.00 | 500 | 500 | Not applicable |
| 2019 | Mixed | MMP | 2 | 500 | 500 | Not applicable |
| 2014 | Mixed | Parallel | 2 | 500 | 500 | Not applicable |
| 2011 | Mixed | Parallel | 2 | 500 | 500 | Not applicable |
| 2007 | Mixed | Parallel | 2 | 480 | 480 | Not applicable |
| 2006 | Mixed | Parallel | 2 | 500 | 500 | Not applicable |
| 2005 | Mixed | Parallel | 2 | 500 | 500 | Not applicable |
| 2001 | Mixed | Parallel | 2 | 500 | 500 | Not applicable |
| 1996 | Plurality/Majority | BV | 1 | 393 | 393 | Not applicable |
| 1995 | Plurality/Majority | BV | 1 | 391 | 391 | Not applicable |
| 1992 | Plurality/Majority | BV | 1 | 360 | 360 | Not applicable |
