Telecom is an abbreviation of telecommunication. It is often trademarked by various companies in their local jurisdiction:

• Brasil Telecom, a Brazilian telecommunications company.
• British Telecom, a United Kingdom telecommunications company.
• France Télécom, a French telecommunications company.
• Telecom New Zealand, a New Zealand telecommunications company.
• Telekom Malaysia, a Malaysian telecommunications company.
• Portugal Telecom, a Portuguese telecommunications company.
• Deutsche Telekom, a German telecommunications company.
• Telecom Italia, an Italian telecommunications company.
• Iceland Telecom, an Icelandic telecommunications company.
• Telecom Colombia, a Colombian telecommunications company.
• Telecom Australia, a forebear of Telstra.
• Pacific Century Cyberworks (PCCW Limited), formerly known as Hong Kong Telecom.
• Telecom Argentina, an Argentine telecommunications company.
• Reliance Communications Ventures Ltd., an Indian telecommunications company.
• Telecom Finland, later Sonera, now part of TeliaSonera

Telekom