- ACEG stands for African Centre for Economic Growth
- ACEG stands for Americans for a Clean Energy Grid (coalition)
- ACEG stands for All Cows Eat Grass (mnemonic for bass clef spaces)
- ACEG stands for Association for Counselors and Educators in Government
- ACEG stands for Associação Cultural e Educacional de Garça (Sao Paulo, Brazil)
- ACEG stands for l’Association Canadienne des Entreprises de Geomatique (Geomatics Industry Association of Canada)
- ACEG stands for Amazing Colossal Episode Guide (Mystery Science Theater 3000)
- ACEG stands for Alternating Current Equipment Ground
- ACEG stands for All Cars Eat Gas (mnemonic for bass clef spaces)
- ACEG stands for Asociación Cultural y Educacional Guatemalteca (Guatemalan Educational and Cultural Association)
- ACEG stands for Aegis Common Equipment Group
- ACEG stands for The Association of Careers Education & Guidance
ACEG