| Austria | Österreichische Datenschutzbehörde (Austrian Data Protection Authority) (DSB) | https://www.dsb.gv.at |
| Belgium | Gegevensbeschermingsautoriteit / Autorité de la protection des données (GBA/APD) | https://www.gegevensbeschermingsautoriteit.be |
| Bulgaria | Commission for Personal Data Protection (CPDP) | https://www.cpdp.bg |
| Croatia | Agencija za zaštitu osobnih podataka (AZOP) | https://azop.hr |
| Cyprus | Office of the Commissioner for Personal Data Protection | https://www.dataprotection.gov.cy |
| Czech Republic | Úřad pro ochranu osobních údajů (Office for Personal Data Protection) (ÚOOÚ) | https://www.uoou.gov.cz |
| Denmark | Datatilsynet | https://www.datatilsynet.dk |
| Estonia | Andmekaitse Inspektsioon (Data Protection Inspectorate) (AKI) | https://www.aki.ee |
| Finland | Office of the Data Protection Ombudsman (Tietosuojavaltuutetun toimisto) | https://tietosuoja.fi |
| France | Commission Nationale de l'Informatique et des Libertés (CNIL) | https://www.cnil.fr |
| Germany | Die Bundesbeauftragte für den Datenschutz und die Informationsfreiheit (BfDI)
For a complaint against a private company (a data broker), a resident normally goes to the supervisory authority of their own federal state (Land), not the federal BfDI. The BfDI site links the list of the 16 Landesdatenschutzbehörden. | https://www.bfdi.bund.de |
| Greece | Hellenic Data Protection Authority (HDPA) | https://www.dpa.gr |
| Hungary | Nemzeti Adatvédelmi és Információszabadság Hatóság (NAIH) | https://www.naih.hu |
| Ireland | Data Protection Commission (DPC) | https://www.dataprotection.ie |
| Italy | Garante per la protezione dei dati personali | https://www.garanteprivacy.it |
| Latvia | Datu valsts inspekcija (Data State Inspectorate) (DVI) | https://www.dvi.gov.lv |
| Lithuania | Valstybinė duomenų apsaugos inspekcija (State Data Protection Inspectorate) (VDAI) | https://vdai.lrv.lt |
| Luxembourg | Commission Nationale pour la Protection des Données (CNPD) | https://cnpd.public.lu |
| Malta | Office of the Information and Data Protection Commissioner (IDPC) | https://idpc.org.mt |
| Netherlands | Autoriteit Persoonsgegevens (AP) | https://www.autoriteitpersoonsgegevens.nl |
| Poland | Urząd Ochrony Danych Osobowych (UODO) | https://uodo.gov.pl |
| Portugal | Comissão Nacional de Proteção de Dados (CNPD) | https://www.cnpd.pt |
| Romania | Autoritatea Naţională de Supraveghere a Prelucrării Datelor cu Caracter Personal (ANSPDCP) | https://www.dataprotection.ro |
| Slovakia | Úrad na ochranu osobných údajov Slovenskej republiky (ÚOOÚ) | https://dataprotection.gov.sk |
| Slovenia | Informacijski pooblaščenec (Information Commissioner) (IP-RS) | https://www.ip-rs.si |
| Spain | Agencia Española de Protección de Datos (AEPD) | https://www.aepd.es |
| Sweden | Integritetsskyddsmyndigheten (Authority for Privacy Protection) (IMY) | https://www.imy.se |
| Iceland | Persónuvernd (Data Protection Authority)
The authority's site moved onto Iceland's national portal island.is; www.personuvernd.is redirects there. | https://island.is/s/personuvernd |
| Liechtenstein | Datenschutzstelle (Data Protection Authority) (DSS) | https://www.datenschutzstelle.li |
| Norway | Datatilsynet (Norwegian Data Protection Authority) | https://www.datatilsynet.no |