| Acronym | Definition |
|---|
| SQ➣Square |
| SQ➣Singapore Airlines |
| SQ➣Sound Quality |
| SQ➣Service Quality (TL 9000) |
| SQ➣Squadron |
| SQ➣Squeezed (Files) |
| SQ➣Stock Quote |
| SQ➣Space Quest |
| SQ➣Subcutaneous |
| SQ➣Squall (METAR weather) |
| SQ➣Sureté du Québec (Provincial Police) |
| SQ➣Super Quiet |
| SQ➣Sigma Quality (Six Sigma quality benchmark) |
| SQ➣Seismically Qualified |
| SQ➣South Qeynos (gaming, Everquest) |
| SQ➣Social Quotient (Van Sloan) |
| SQ➣Stupid Question |
| SQ➣Signal Quality |
| SQ➣Significant Quantity (nuclear weapons, fission: IAEA term for the amount of fissile material necessary) |
| SQ➣Special Quotation (Japanese stock market) |
| SQ➣Systemizing Quotient |
| SQ➣Scalar Quantization |
| SQ➣San Quentin Prison (San Quentin, CA) |
| SQ➣Soldier Qualification (Canadian Forces) |
| SQ➣Stereo Quadraphonic (Columbia Records quadraphonic system) |
| SQ➣Student Questionnaire |
| SQ➣Side-Quest (gaming) |
| SQ➣Superquick |
| SQ➣Stephan's Quintet |
| SQ➣Système Qualité (French: Quality System) |
| SQ➣Shortest Queue |
| SQ➣Subject to Quotation |
| SQ➣Slack Quenching |
| SQ➣Sound Que (theater terminology) |
| SQ➣Safety Quotient |
| SQ➣Squad member but no letter (National Collegiate Athletic Association) |