- ACTR stands for Actuator
- ACTR stands for American Council of Teachers of Russian
- ACTR stands for Association for Canadian Theatre Research
- ACTR stands for A Christmas To Remember
- ACTR stands for American Consulting Technology and Research (Provo, UT)
- ACTR stands for Assistant Contract Technical Representative (NMCI liaison)
- ACTR stands for Acquired Commercial Technology for Retrieval
- ACTR stands for Acquisition Cycle Time Reduction
ACTR