Spain DNI Validator
Validate Spanish National ID
Enter a Spanish National Identity Document number to verify its validity.
About this Validator
This tool validates Spanish National Identity Numbers according to official requirements.
The validator checks if a given DNI follows the correct structure and verifies its control letter.
This validation only confirms if a number follows the correct format. It does not verify if the number is actually registered with Spanish authorities.
What is a DNI (Documento Nacional de Identidad)?
DNI Structure: Spanish Citizens (DNI): • Format: 99999999L • 8 digits + control letter Special Cases: 1. Non-resident Spaniards: • Format: L9999999L • Letter L + 7 digits + control letter 2. Residents under 14: • Format: K9999999L • Letter K + 7 digits + control letter 3. Foreigners (NIE): • Format: X/Y/Z9999999L • Letter X/Y/Z + 7 digits + control letter
Validation Features: • Format verification • Prefix validation • Length check • Control letter validation • Pattern compliance
Used for: • Personal identification • Tax purposes • Legal transactions • Government services • Financial operations • Official documents
Important Notes: • Official identifier • Multiple formats • Nationality based • Age specific • Resident status
If you need to generate a DNI for testing purposes, here is a Spain DNI Generator