| Acronym | Definition |
|---|
| LCA | Life Cycle Assessment |
| LCA | Saint Lucia (ISO Country code) |
| LCA | Life Cycle Analysis |
| LCA | Linux.conf.au (Australian Linux conference) |
| LCA | Lambda Chi Alpha (fraternity) |
| LCA | Labor Condition Application |
| LCA | Light Combat Aircraft |
| LCA | Lutheran Church of Australia |
| LCA | Leber's Congenital Amaurosis (inherited retinal degenerative disease) |
| LCA | Legalise Cannabis Alliance (UK) |
| LCA | Last Chance for Animals |
| LCA | Left Coronary Artery |
| LCA | Landscape Character Assessment (UK landscape planning) |
| LCA | Lutheran Church in America (now part of the Evangelical Lutheran Church in America) |
| LCA | Louisiana Coastal Area |
| LCA | Leukocyte Common Antigen |
| LCA | Lower Control Arm (automotive) |
| LCA | Landscape Character Areas |
| LCA | Logic Cell Array |
| LCA | Last Common Ancestor |
| LCA | Life Cycle Architecture (software development) |
| LCA | Lowest Common Ancestor (graph theory) |
| LCA | Landing Craft, Assault |
| LCA | Lights, Camera, Action |
| LCA | Locally Compact Abelian (mathematics) |
| LCA | Linux Certified Administrator (Sair Linux and GNU certification) |
| LCA | Low Cost Automation |
| LCA | Lake Carriers Association |
| LCA | Louisiana Chemical Association |
| LCA | Landscape Contractors Association |
| LCA | Laboratory for Computational Astrophysics |
| LCA | Large Civil Aircraft (aviation) |
| LCA | Life Cycle Applications |
| LCA | Local Cooperation Agreement |
| LCA | Lesher Center for the Arts (Walnut Creek, CA) |
| LCA | Liquor Control Act (Canada) |
| LCA | Life Communicators Association |
| LCA | Legal & Corporate Affairs |
| LCA | lymphocyte common antigen |
| LCA | Logistics Capacity Assessment |
| LCA | Littoral Cell Angioma |
| LCA | Lesotho Communications Authority (regulatory body) |
| LCA | Linked Cluster Algorithm |
| LCA | Laboratory for Computer Architecture (Department of Electrical and Computer Engineering; University of Texas at Austin) |
| LCA | Launch Control Area |
| LCA | Lancaster County Academy (Pennsylvania) |
| LCA | Low Cost Aircraft |
| LCA | Lehigh Christian Academy (Pennsylvania) |
| LCA | Logistics Control Activity |
| LCA | Lumbermen's Credit Association |
| LCA | Leadership Center for Asian Pacific Americans |
| LCA | Load Controller Assembly |
| LCA | Loop Crossover Assembly |
| LCA | Loopback Command, Audio Loop Request |
| LCA | Line Circuit Address |
| LCA | Launcher Control Area |
| LCA | Local Call Area |
| LCA | Larnaca, Cyprus - International (Airport Code) |
| LCA | Louisiana Chess Association |
| LCA | Liquid Crystal Attenuator |
| LCA | Lasik Centers of America (Laser eye surgery centers) |
| LCA | Limited Commercial Availability |
| LCA | Leadless Component Assembly |
| LCA | Lodging Capitalization Assessment |
| LCA | Letter Carrier Assistant (Canada Post) |
| LCA | Lower Close Auxiliary |
| LCA | Linear Cellular Array |
| LCA | Lockup Clutch Actuator |
| LCA | Line Concentrating Array |
| LCA | Lower Class Adoption (band) |
| LCA | Loop Control Architecture |