| Acronym | Definition |
|---|
| ECQ➣Electoral Commission Queensland (Australia) |
| ECQ➣Executive Core Qualifications |
| ECQ➣Energy City Qatar |
| ECQ➣European Center for Quality Ltd. (est. 2001) |
| ECQ➣Enterprise Cyberquery (Cyberscience Corporation) |
| ECQ➣Ecliptiq Radio (gaming) |
| ECQ➣Ecquaria Technologies |
| ECQ➣Entropy-Constrained Quantization |
| ECQ➣Evening Call to Quarters (military) |