| Acronym | Definition |
|---|
| BTL | Battle |
| BTL | Bottle |
| BTL | Beyond the Limit (band) |
| BTL | Below The Line (advertising) |
| BTL | Between the Lines |
| BTL | Buy To Let |
| BTL | Battle Creek (Amtrak station code; Battle Creek, MI) |
| BTL | Behind the Lens (various locations) |
| BTL | Bataillon (German: Battalion) |
| BTL | Biomass-to-Liquids |
| BTL | Biomass to Liquids |
| BTL | Bit Timing Logic |
| BTL | Blaster Teletype |
| BTL | Belize Telemedia Limited |
| BTL | Bolsa de Turismo de Lisboa (Portuguese tourism exhibition) |
| BTL | Bridge-Tied Load (amplifier) |
| BTL | Between the Lions (PBS children's TV show) |
| BTL | Bilateral Tubal Ligation |
| BTL | Bell Telephone Laboratories |
| BTL | Build-Transfer-Lease |
| BTL | Broadway Theatre League (various locations) |
| BTL | Built-To-Last |
| BTL | BACnet Testing Laboratories |
| BTL | Beyond the Limits |
| BTL | Bubba the Love Sponge |
| BTL | Business Team Leader (various companies) |
| BTL | Burn to Learn (fire training) |
| BTL | Better-Than-Life |
| BTL | Biomass to Liquid Fuel |
| BTL | Backplane Transceiver Logic |
| BTL | Between the Legs |
| BTL | Banque Tuniso-Libyenne (French: Tunisian-Libyan Bank; Tunisia) |
| BTL | Business Technology Lab |
| BTL | Blood Transfusion Laboratory (various locations) |
| BTL | Boystown Live (Internet radio station) |
| BTL | Buoy Turret Loading (mooring) |
| BTL | Build-to-Line (property construction; various locations) |
| BTL | Born Too Late (band) |
| BTL | Business Term Loan |
| BTL | Bowel Tolerance Level |
| BTL | Building Tightness Limit (building air exchange) |
| BTL | Branching Temporal Logic |
| BTL | Blue Trunk Library |
| BTL | Bend Tarp and Liner (Prineville, OR) |
| BTL | Batlagundu (parish) |
| BTL | Bike Tow Leash |
| BTL | Bipolar-Transistor Logic |
| BTL | Big Time Loser |
| BTL | Basic Termination Liability |
| BTL | Birla Technologies Limited |
| BTL | Brian Thomas Littrell (singer) |
| BTL | Baltimore Tank Lines, Inc. (trucking company) |
| BTL | British Telecommunications Laboratories |
| BTL | Bachelor of Talmudic Law |
| BTL | Bout That Life |
| BTL | Black Tea Lemonade (Starbucks) |
| BTL | Billing Term Liability (Sprint) |
| BTL | Begining TAPR Label |
| BTL | Battle Loss |
| BTL | Bible Translation & Literacy of East Africa |