Iceland
| 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 | PR | List PR | 2 | 63 | 63 | FPTP |
| 2016 | PR | List PR | 2 | 63 | 63 | FPTP |
| 2013 | PR | List PR | 2 | 63 | 63 | FPTP |
| 2009 | PR | List PR | 2 | 63 | 63 | FPTP |
| 2007 | PR | List PR | 2 | 63 | 63 | FPTP |
| 2003 | PR | List PR | 2 | 63 | 63 | FPTP |
| 1999 | PR | List PR | 2 | 63 | 63 | FPTP |
| 1995 | PR | List PR | 2 | 63 | 63 | FPTP |
| 1991 | PR | List PR | 2 | 63 | 63 | FPTP |
