Latvia
| 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 |
|---|---|---|---|---|---|---|
| 2022 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2018 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2014 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2011 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2010 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2006 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 2002 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 1998 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 1995 | PR | List PR | 1 | 100 | 100 | Not applicable |
| 1993 | PR | List PR | 1 | 100 | 100 | Not applicable |
