The following elections were scheduled to occur in 2023. The National Democratic Institute also maintains a calendar of elections around the world.
- Albania
- Andorra
- Armenia
- Austria
- Bulgaria
- Cyprus
- Czech Republic
- Estonia
- Finland
- France
- Germany
- Greece
- Italy
- 2023 Italian local elections, 2-3 April & 17-18 April (Friuli-Venezia Giulia) / 14-15 May (first round) / 21 May (first round in Aosta Valley and Trentino-Alto Adige) / 28-29 May (second round and first round in Sardinia and Sicily) / 11-12 June (second round in Sardinia and Sicily)
- 2023 Italian regional elections
- Lithuania
- Luxembourg
- Moldova
- Montenegro
- Netherlands
- Norway
- Poland
- Portugal
- Russia
- Serbia
- Slovakia
- Spain
- 2023 Spanish local elections, 28 May
- 2023 Spanish regional elections, 28 May
- 2023 Aragonese regional election, 28 May
- 2023 Asturian regional election, 28 May
- 2023 Balearic regional election, 28 May
- 2023 Canarian regional election, 28 May
- 2023 Cantabrian regional election, 28 May
- 2023 Castilian-Manchegan regional election, 28 May
- 2023 Extremaduran regional election, 28 May
- 2023 Madrilenian regional election, 28 May
- 2023 Murcian regional election, 28 May
- 2023 Navarrese regional election, 28 May
- 2023 Riojan regional election, 28 May
- 2023 Valencian regional election, 28 May
- 2023 Ceuta Assembly election, 28 May
- 2023 Melilla Assembly election, 28 May
- 2023 Spanish general election, 23 July
- Switzerland
- Turkey
- United Kingdom