| 🇹🇷 Türkiye | KVKK | 2016 | Personal Data Protection Authority (KVK Kurumu) | Law No. 6698 on the Protection of Personal Data | TRY 17,092,242 (2026; per breach, re-valued annually) | www.kvkk.gov.tr |
| 🇩🇪 Germany | GDPR | 2018 | BfDI (federal) + 16 state DPAs | Federal Data Protection Act (BDSG) | — | www.bfdi.bund.de |
| 🇫🇷 France | GDPR | 2018 | CNIL — Commission Nationale de l'Informatique et des Libertés | Loi Informatique et Libertés (1978, revised 2018) | — | www.cnil.fr |
| 🇮🇹 Italy | GDPR | 2018 | Garante per la protezione dei dati personali | Personal Data Protection Code | — | www.garanteprivacy.it |
| 🇪🇸 Spain | GDPR | 2018 | AEPD — Spanish Data Protection Agency | LOPDGDD — Organic Law 3/2018 | — | www.aepd.es |
| 🇳🇱 Netherlands | GDPR | 2018 | Autoriteit Persoonsgegevens (AP) | GDPR Implementation Act (UAVG) | — | autoriteitpersoonsgegevens.nl |
| 🇵🇱 Poland | GDPR | 2018 | UODO — Personal Data Protection Office | Personal Data Protection Act 2018 | — | uodo.gov.pl |
| 🇧🇪 Belgium | GDPR | 2018 | Data Protection Authority (APD/GBA) | Data Protection Act (30 July 2018) | — | www.autoriteprotectiondonnees.be |
| 🇸🇪 Sweden | GDPR | 2018 | Integritetsskyddsmyndigheten (IMY) | Data Protection Act (2018:218) | — | www.imy.se |
| 🇦🇹 Austria | GDPR | 2018 | Datenschutzbehörde (DSB) | Datenschutzgesetz (DSG) | — | www.dsb.gv.at |
| 🇮🇪 Ireland | GDPR | 2018 | Data Protection Commission (DPC) | Data Protection Act 2018 | — | www.dataprotection.ie |
| 🇵🇹 Portugal | GDPR | 2019 | Comissão Nacional de Proteção de Dados (CNPD) | Law 58/2019 | — | www.cnpd.pt |
| 🇩🇰 Denmark | GDPR | 2018 | Datatilsynet | Data Protection Act | — | www.datatilsynet.dk |
| 🇫🇮 Finland | GDPR | 2019 | Office of the Data Protection Ombudsman | Data Protection Act (1050/2018) | — | tietosuoja.fi |
| 🇬🇷 Greece | GDPR | 2019 | Hellenic Data Protection Authority (HDPA) | Law 4624/2019 | — | www.dpa.gr |
| 🇨🇿 Czechia | GDPR | 2019 | Úřad pro ochranu osobních údajů (ÚOOÚ) | Act No. 110/2019 Coll. | — | www.uoou.cz |
| 🇭🇺 Hungary | GDPR | 2018 | NAIH — National Authority for Data Protection | Act CXII of 2011 (Infotv.) | — | naih.hu |
| 🇷🇴 Romania | GDPR | 2018 | ANSPDCP | Law No. 190/2018 | — | www.dataprotection.ro |
| 🇧🇬 Bulgaria | GDPR | 2019 | CPDP | Personal Data Protection Act | — | www.cpdp.bg |
| 🇭🇷 Croatia | GDPR | 2018 | AZOP | Act on Implementation of the GDPR | — | azop.hr |
| 🇸🇮 Slovenia | GDPR | 2023 | Informacijski pooblaščenec (IP-RS) | Personal Data Protection Act (ZVOP-2, 2023) | — | www.ip-rs.si |
| 🇸🇰 Slovakia | GDPR | 2018 | Office for Personal Data Protection | Act No. 18/2018 Coll. | — | dataprotection.gov.sk |
| 🇪🇪 Estonia | GDPR | 2019 | Andmekaitse Inspektsioon (AKI) | Personal Data Protection Act (IKS) | — | www.aki.ee |
| 🇱🇻 Latvia | GDPR | 2018 | Datu valsts inspekcija (DVI) | Personal Data Processing Law | — | www.dvi.gov.lv |
| 🇱🇹 Lithuania | GDPR | 2018 | VDAI | Law on Legal Protection of Personal Data | — | vdai.lrv.lt |
| 🇱🇺 Luxembourg | GDPR | 2018 | CNPD | Act of 1 August 2018 | — | cnpd.public.lu |
| 🇲🇹 Malta | GDPR | 2018 | IDPC | Data Protection Act (Chapter 586) | — | idpc.org.mt |
| 🇨🇾 Cyprus | GDPR | 2018 | Office of the Commissioner for Personal Data Protection | Law 125(I)/2018 | — | www.dataprotection.gov.cy |
| 🇮🇸 Iceland | GDPR (EEA) | 2018 | Persónuvernd | Act on Data Protection (90/2018) | — | www.personuvernd.is |
| 🇱🇮 Liechtenstein | GDPR (EEA) | 2019 | Datenschutzstelle (DSS) | Datenschutzgesetz (LR 235.1) | — | www.datenschutzstelle.li |
| 🇳🇴 Norway | GDPR (EEA) | 2018 | Datatilsynet | Personal Data Act (15 June 2018) | — | www.datatilsynet.no |