| Acronym | Definition |
|---|
| TCP | Transmission Control Protocol (with Internet Protocol [IP], the main protocol of the Internet) |
| TCP | Transport Control Protocol |
| TCP | Tennenbaum Capital Partners (Santa Monica, CA) |
| TCP | Tricalcium Phosphate (calcium salt) |
| TCP | Total Control Products |
| TCP | Three Card Poker (game) |
| TCP | Town and Country Planning (various locations) |
| TCP | The Complete Package |
| TCP | Tape Carrier Package |
| TCP | Traditional Cultural Property (US NPS) |
| TCP | Toledo City Paper (Toledo, OH) |
| TCP | Tratado de Comercio de los Pueblos (Spanish) |
| TCP | Tunnel Control Protocol |
| TCP | Test Coordination Procedure |
| TCP | Transmission Control Protocol |
| TCP | Transfer Control Protocol |
| TCP | Termination Connection Point |
| TCP | Trusted Computing Platform |
| TCP | Trans-Caspian Pipeline (submarine pipeline between Turkmenistan and Azerbaijan) |
| TCP | Trichlorophenol (antiseptic) |
| TCP | Tricresyl Phosphate (plasticizer and lubricant) |
| TCP | The Color Pages (resource; various locations) |
| TCP | The Climate Project |
| TCP | Tool Center Point |
| TCP | Theater Campaign Plan |
| TCP | Taxable Canadian Property |
| TCP | Time Charter Party (transport) |
| TCP | Traffic Control Point (law enforcement) |
| TCP | Technical Cooperation Project |
| TCP | Transcutaneous Pacing |
| TCP | Tubing Conveyed Perforating (oil drilling) |
| TCP | Teaching Credential Program (various schools) |
| TCP | Toxin-Coregulated Pilus |
| TCP | Technology Control Plan |
| TCP | Checkpoint Time |
| TCP | Test Case Point (software) |
| TCP | The Cool People |
| TCP | The Commission Project (est. 1994) |
| TCP | The Crowd Pleasers (band) |
| TCP | Tumor Control Probability |
| TCP | Tactical Control Panel (US DoD) |
| TCP | Turtle Conservation Project |
| TCP | Thrust Chamber Pressure (US NASA) |
| TCP | Transformer Coupled Plasma |
| TCP | Touch Control Panel |
| TCP | The Calendar Planner (software) |
| TCP | Terrestrial Carbon Processes |
| TCP | Terminal Control Protocol |
| TCP | Transactional Content Processing (software) |
| TCP | The Career Place (Woburn, MA) |
| TCP | Tactical Command Post |
| TCP | Tissue Culture Plastic |
| TCP | Tripulante Cabina de Pasajeros (Spanish: Passenger Cabin Crew; aviation) |
| TCP | Traffic Calming Program (various locations) |
| TCP | Technical Communication Professionals |
| TCP | Triple Crown Productions (horse racing) |
| TCP | Transformation Campaign Plan |
| TCP | Two Candidate Preferred (Australian voting system) |
| TCP | Tuition Credit Program (various schools) |
| TCP | Topologically Close Packed |
| TCP | Thai Citizen's Party (Thailand) |
| TCP | Turnover and Completion Package (various companies) |
| TCP | The Centre Path (gaming guild) |
| TCP | The Cancer Project |
| TCP | Through-Canopy Penetration (ejection seat protocol; US DoD) |
| TCP | Tubing Conveyed Perforation (oil) |
| TCP | Technological Capabilities Panel |
| TCP | Transportation Control Plan |
| TCP | The Community Players (New Hamburg, ON, Canada theater group) |
| TCP | Tropical Canine Pancytopenia |
| TCP | Tennis Club de Paris (French: Paris Tennis Club; France) |
| TCP | Tiger Creek Powerhouse (California) |
| TCP | Technical Coordination Program |
| TCP | Tribal Consultation Policy (US DHHS) |
| TCP | Trajectory Change Point (air traffic management) |
| TCP | Tele-Communications Priorities (emergency management) |
| TCP | Thought Control Police |
| TCP | Tool Control Program |
| TCP | Trichlorophenylmethyliodosalicyl (proprietary germicide) |
| TCP | Terminal Connection Point |
| TCP | Total Compensation Plan |
| TCP | Terminal Control Processor (AN/USC-38 EHF SATCOM terminal) |
| TCP | Tactical Cryptologic Program |
| TCP | Task Change Proposal |
| TCP | Tamaraw Conservation Program (Philippines) |
| TCP | Tropospheric Chemistry Program |
| TCP | Termination Contracting Officer |
| TCP | Trivalent Chromium Pretreatment |
| TCP | Traditional Cultural Place |
| TCP | Tactical Computer Processor |
| TCP | Trial Color Proof (philatelic color test stamp) |
| TCP | Tactical Control Point |
| TCP | Technical Change Proposal |
| TCP | Trading Corporation of Pakistan Ltd |
| TCP | Tassin Club Pongiste (French table tennis club) |
| TCP | Tourism Certified Professional (Canadian Hotel & Restaurant Training Protocol) |
| TCP | Transmission by Carrier Pigeon |
| TCP | Temperature Coefficient of Permittivity |
| TCP | Turbine Control Panel |
| TCP | Target Classification Process |
| TCP | Terrot Club Pyrénéen (French motorcycle club) |
| TCP | Training Certification Plan |
| TCP | Terminal Command Personal Identifier |
| TCP | Tricholoropropane |
| TCP | Taxpayer Compliance Program |
| TCP | Timing and Control Panel |
| TCP | Tank Commanders Panel |
| TCP | Two Compartment Pod (B-58 Hustler) |
| TCP | Terminal Control Position |
| TCP | Trainer Change Proposal |
| TCP | Technical/Technology Coordinating Paper |
| TCP | Training Control Program |
| TCP | Topographic Control Points |
| TCP | TRANSEC Control Processor |
| TCP | Test and Checkout Plan |
| TCP | Tripycrylbenzene (very high temperature explosive) |
| TCP | Time-Limited Correlation Processing |
| TCP | Time Inversion Operations, Charge, Parity operations (theorems) |
| TCP | Track Control Processor |
| TCP | Training Concept Plan |
| TCP | Telemetry & Command Program |
| TCP | Tactical Control Processor |
| TCP | Thickness Conductivity Product |
| TCP | Test Checkout Panel (US Army; component of Shillelagh Missile System on M551 & M60A2 tanks) |
| TCP | Trident Control Program (Trident submarines) |
| TCP | Traditional CINC Program(s) |
| TCP | Traffic Control Point/Post |
| TCP | Totally Cool Person |
| TCP | Total Cost to Print |
| TCP | Transportation Charter Permit |
| TCP | Treaty Commission Process (Canada) |
| TCP | Technical Consumer Products Incorporated |
| TCP | The Cooper Partnership |
| TCP | Targets and Countermeasures Prime |
| TCP | Tri-Cities Paranormal (Kingsport, TN) |
| TCP | Taxi Cab Paris (France) |