ECTC may refer to:

• Ectoine synthase, an enzyme
• East Carolina University

• Aleksey Zhuravlyov (footballer)
• Aleksey Zlydnev
• Aleks Gatchina
• Aleksi Andrea
• Aleksi Asikainen
• Aleksi Benashvili
• Aleksic
• Aleksicze
• Aleksiejowka
• Aleksiejówka
• Aleksie Rogonov
• Aleksiey Rogonov
• Aleksi Holmberg
• Aleksi Inauri
• Aleksi Laakso
• Aleksi Lehtonen
• Aleksinacki Bujmir
• Aleksinac municipality
• Aleksinački Bujmir
• Aleksince
• Aleksine
• Aleksino
• Aleksino (disambiguation)
• Aleksis Ahlqvist
• Aleksi Salmenpera