- ACER stands for Australian Council of Educational Research
- ACER stands for Agency for the Cooperation of Energy Regulators (EU)
- ACER stands for Alcoholism: Clinical & Experimental Research (medical journal)
- ACER stands for Armored Combat Engineer Robot
- ACER stands for Aviation Certification
- ACER stands for Advisory Committee on Environmental Resources
- ACER stands for Annual Contractor Evaluation Report
- ACER stands for Authorized Capital Expenditure
- ACER stands for Acadia Center for Estuarine Research (Wolfville, Nova Scotia, Canada)
ACER