Transco

Transco may refer to:

• Transco, former name of National Grid Gas plc, part of British utility company National Grid plc
• National Transmission Corporation, known as TransCo, a Philippine government corporation which supervises its concessionaire and the country's power grid operator National Grid Corporation of the Philippines (NGCP)
• Transcontinental Pipeline, a natural gas company in the United States
• Transmarine Corporation shipping