KTT
KTT stands for:
- Classical test theory , the most popular psychometric test theory
- Kittilä Airport in Finland, according to the IATA airport code
- Kazakh railway company Kaztemirtrans
- Powiat Tatrzański in Lesser Poland Voivodeship, Poland (license plate)
Ktt stands for:
- KCRC Through Train , a locomotive, see KCRC TLN / TLS
