KTT

KTT stands for:

• Classical test theory, the most widely used psychometric test theory
• Kittila Airport in Finland, according to the IATA Airport Code
• Kazakh railway company Kaztemirtrans

KTT as distinguishing signs on license plate:

• Poland: powiat Tatrzański in the Lesser Poland Voivodeship

Ktt stands for:

• KCRC Through Train, a locomotive, see KCRC TLN / TLS

• Disambiguation
• Abbreviation