Spanish Telephone Company
- Country: Spain
- Type: Commercial
- Website: www.telefonica.com
- Update: 05-02
Telefónica (Telefónica) is the largest telecommunications company in Spain, founded in 1924 and headquartered in Madrid. Until 1997, Telefónica was the only telecommunications operator in Spain. Telefónica was ranked 97th in the 2013 Fortune 500 ranking.