- Qatarians
- Qatari Drama
- Qatsi
- Qausuittuq National Park
- Qays and Lubna
- Q-ball
- q-beta-function
- QBF
- QBIC
- q binomial coefficient
- q-binomial coefficient
- q-binomial theorem
- qbit
- QBO
- q-bracket
- Q-branch
- QC
- q-calculus
- Q Cartier divisor
- Q-Cartier divisor
- QCD
- QCD factorization in non-leptonic decays
- QCD fractorization
- QCD resummation
- QCD sum rule