FQ or fq may stand for:
- Baker Island (FIPS PUB 10-4 territory code)
- Faisal Qureshi
- Fenqing
- Fluoroquinolone antibiotics
- Football Queensland, the governing body of association football in the Australian State of Queensland
- Frequency
- Fully qualified name, an unambiguous name that specifies an object absolutely
- SMS language for "fuck you"
- Thomas Cook Airlines Belgium (IATA airline code)