| Abbreviation | Definition |
|---|---|
| QL | Qmail LDAP (Lightweight Directory Access Protocol) |
| QLA | Quark License Administrator |
| QLI | Query Language Interpreter |
| QLP | Q Launcher Pro |
| QMM | Quality Monitoring Module |
| QMM | Quarterdeck Memory Manager |
| QMS | Quality Management Software |
| QMS | Quantitative Micro Software |
| QNP | Quick Note Pad |
| QO | Quick Open |
| QOL | Quality On-Line |
| QOS | Quality Open Software |
| QOS | Software Quality Insurance |
| QP | Quality Programming |
| QP | Questel Plus |
| QPAS | QUSMA Performance Analytics Suite |
| QPH&B | Quicken 2003 Premier Home and Business |
| QPL | Qt Public License |
| QPL | Quantum Programming Language |
| QPL | Questionnaire Programming Language |