TK
- .tk
- Angel Beats!
- Bangladeshi taka
- Daegu–Gyeongbuk
- K (disambiguation)
- KT (disambiguation)
- Korovin pistol
- Postal codes in Greece
- Sunshine Machine
- T (disambiguation)
- T. K. Oommen
- TK (Peruvian rock band)
- TK Maxx
- TK Records
- TKS (disambiguation)
- Takeru "T.K." Takaishi
- Tarantadong Kalbo
- Techniker Krankenkasse
- Tehsil
- Tekken
- Telecine
- Telekinesis
- Tetsuya Komuro
- Theodore K. Lawless
- Thymidine kinase
- ThyssenKrupp
- Tidens Krav
- Tk (software)
- Tk'tk'tk
- To come (publishing)
- Tokelau
- Tom Kent
- Tony Kanaan
- Toru Kitajima
- Traditional knowledge
- Transitional kindergarten
- Transketolase
- Turkish Airlines
- Turkmen language
- Type 94 tankette