| Acronym | Definition |
|---|
| BLT | Bacon, Lettuce & Tomato (sandwich) |
| BLT | Bolt |
| BLT | Blekinge Läns Tidning (newspaper) |
| BLT | Bulletin of the World Health Organization |
| BLT | Battalion Landing Team |
| BLT | Bistro Laurent Tourondel (New York City, NY) |
| BLT | Better Life Technology |
| BLT | Bantuan Langsung Tunai |
| BLT | Black Liberation Theology |
| BLT | Better Luck Tomorrow |
| BLT | Tai Dam (SIL code, Vietnam) |
| BLT | Baselland Transport AG (German: Basel Land Transport; Basel, Switzerland; public transportation company) |
| BLT | Berlian Laju Tanker |
| BLT | Building Leadership Team |
| BLT | Bodo Liberation Tigers |
| BLT | Bizarre Love Triangle (band) |
| BLT | Build-Lease-Transfer (project/financing arrangement) |
| BLT | Be Like That |
| BLT | Basic Leadership Training (various organizations) |
| BLT | Business Law Today |
| BLT | Bond Line Thickness (semiconductor manufacturing) |
| BLT | Barnstable Land Trust (Barnstable, Cape Cod, Massachusetts) |
| BLT | Better Living for Texans |
| BLT | Braxton's Link Tester |
| BLT | Big Lung Trial |
| BLT | British Liver Trust |
| BLT | Bi-Layer Tracing |
| BLT | Blue Label Telecoms (South Africa) |
| BLT | Bulbs Lamps and Tubes |
| BLT | Building and Land Technology |
| BLT | Better Lighting Technology |
| BLT | Building Level Team |
| BLT | Boulevard Lakefront Tour |
| BLT | Boulevard Lakefront Tour (Chicago cycling event) |
| BLT | Black Leather Times |
| BLT | Business Leadership Team |
| BLT | Bites, Licks and Tastes (Weight Watchers) |
| BLT | Best Links and Tips |
| BLT | Balanced Line Tuner (tunes a balanced feed antenna system) |
| BLT | Bilinear Transform (Digital Signal Processing technique) |
| BLT | Building Learning with Technology |
| BLT | Battery Life Tester |
| BLT | B'Elanna Torres (Star Trek: Voyager character) |
| BLT | Bright Light Treatment |
| BLT | Bowles-Langley Technology |
| BLT | Back-Lighted Thyratron |
| BLT | Basic Light Trainer (RC plane) |
| BLT | Bramalea Live Theatre |
| BLT | Butt, Legs and Tummy |
| BLT | Basic Library Techniques |
| BLT | Beach Landing Site |
| BLT | Beam Line Tuner |
| BLT | Bridge Layer Tank |
| BLT | Business Logistics Thailand Co., Ltd |
| BLT | Bass Level Treble |
| BLT | Buick Lesabre T-Type |
| BLT | Basic Language Translator |
| BLT | Baghdad Local Time (GMT+0300) |
| BLT | Brave Little Tailor (Mickey Mouse cartoon) |
| BLT | Building as a Learning Tool |
| BLT | AOL Instant Messenger Buddy List (file extension) |
| BLT | Bedford Local Transit (Massachusetts) |
| BLT | Basic Loaded Touring (bicycles) |
| BLT | Biomedical Laboratory Technology |
| BLT | Business Liaison Team |
| BLT | Burbank Local Transit |
| BLT | Bad Luck Troopers (gaming) |
| BLT | Babcock Lauder Technology (UK) |
| BLT | Business Link Transports |
| BLT | Berkshire Lyric Theatre |
| BLT | Bottom Line Technology |
| BLT | Board-Level Test (electronics manufacturing) |
| BLT | Batch Lab Treater |
| BLT | Battalion-Level Training |
| BLT | Black Light Theater |
| BLT | Bedford Land Trust |
| BLT | Basic Log Tools |
| BLT | Black Lightwall Threadable (pipe) |
| BLT | Battalion Leadership Team (Army recruiting) |
| BLT | Business Leadership Training (various organizations) |
| BLT | Bethesda Little Theater |
| BLT | Breakfast and Lunch Topics (New Jersey) |
| BLT | Blog Link Types |
| BLT | Billing, Logistics and Tracking |
| BLT | Belt Loop Tool Holder |
| BLT | Toxicology Society of Belgium and Luxembourg |
| BLT | Bellows Sealed Linear Translator |
| BLT | Brokered Login Transaction |
| BLT | Basketball, Love and Tennis (book by Helyn Marguerite Edwards) |
| BLT | Big Loser Time (band) |
| BLT | Benson Little Theater |
| BLT | Basic Learning Technique |
| BLT | Block Large Transfer (PDP-10 Instruction) |
| BLT | Bible Lunchtime Talks |
| BLT | Bangladesh Law Times |
| BLT | Bolton Little Theater (UK) |
| BLT | Biased-Life Test (reliability) |
| BLT | Bone Marrow, Liver, and Thymus |
| BLT | Bulk Loading Tool |
| BLT | Bachelor of Laboratory Technology |
| BLT | Bell Labs Technology |
| BLT | Belgisch Laboratorium voor Thermometrie (Dutch: Belgian Thermometry Laboratory) |
| BLT | Blog of Legal Times |
| BLT | Bay Lake Tower (Disney's Contemporary Resort) |
| BLT | Business Leaders of Tomorrow (various schools) |
| BLT | Boost Leak Test (automotive engineering) |