WECO may refer to:

• Western Electric Company

• Winnipeg Electric Company

• WECO (AM), a radio station (940 AM) licensed to Wartburg, Tennessee, United States

• WECO-FM, a radio station (101.3 FM) licensed to Wartburg, Tennessee, United States

• WECO Lab

• WECO Pyrotechnische Fabrik, a German fireworks company

• Wisconsin Engraving Company, a tooling industry services provider.