| Acronym | Definition |
|---|
| TK | Tank |
| TK | Technical Knock-out (usually written TKO) |
| TK | Truck |
| TK | Tokelau (small island country) |
| TK | To Come (phonetic abbreviation used in journalism) |
| TK | Telekommunikation (German: telecommunication) |
| TK | Techniker Krankenkasse (German health insurer) |
| TK | Tokelau (ISO country code, top level domain) |
| TK | Taka (Bangladeshi currency) |
| TK | Traditional Knowledge |
| TK | Turkish Airlines (IATA airline code) |
| TK | Tool Kit |
| TK | The Killers (band) |
| TK | Telekinesis |
| TK | Tickling (online community reference) |
| TK | Turks & Caicos Islands |
| TK | Toby Keith (country music artist) |
| TK | Telecine |
| TK | Telekomünikasyon Kurumu (official telecommunications authority in Turkey) |
| TK | Tiefkühl (German: deep-freeze, frequently used in supermarkets) |
| TK | Tetsuya Komuro (Japanese musician) |
| TK | Terveyskeskus (Finnish: health center) |
| TK | Teamkill (gaming, SubSpace/Continuum) |
| TK | Tempest Keep (World Of Warcraft gaming) |
| TK | Team Kill |
| TK | Tahap Kecekapan (Malay: Efficiency Level) |
| TK | Turmion Kätilöt (Finnish: Turmoil; metal band) |
| TK | Temple Knight (gaming, Final Fantasy XI) |
| TK | Timo Kotipelto (band) |
| TK | Talent-Keyhole |
| TK | Toni Kukoc (basketball player) |
| TK | Teras Kasi (Star Wars) |
| TK | Tapan Kaikki (computer game) |
| TK | Telephone Kiosk |
| TK | Tango Kilo |
| TK | Thermokontakt (German: Thermal Contact) |
| TK | Teatri Kombëtar (National Theatre, Albania) |
| TK | Typekill (gaming, SubSpace/Continuum) |
| TK | Total Khaos (gaming) |
| TK | Tire Kicker |
| TK | True Kingdom (gaming) |
| TK | Talk Kill (gaming tactic) |
| TK | Tornikanuuna (Finnish: fixed coastal artillery) |
| TK | Tricky Klan (Portuguese Quake clan) |
| TK | Transducer Kit |
| TK | True Klingon |
| TK | Turn-Key Base |
| TK | Tribal Krafts (New Delhi, India) |
| TK | Tailor Key |
| TK | Throwing Knife (gaming) |
| TK | Trojan Keylogger |
| TK | Thymidine Kinase (enzyme) |