- BASE stands for Baseband
- BASE stands for Basic Analysis and Security Engine (software)
- BASE stands for Berlin Aging Study
- BASE stands for Beaufort and Arctic Storms Experiment (Canada)
- BASE stands for Boston Association of Structural Engineers (Boston, MA)
- BASE stands for Beta-Alumina Solid Electrolyte
- BASE stands for Building Access to Specialists through E-Consultation (Canada)
- BASE stands for Building, Antennae, Span, Earth (parachute jumping)
- BASE stands for Blind Adaptive Signal Extraction
- BASE stands for Brigade Automated Simulation Exercise
- BASE stands for Bay Area Security Enhancement (San Francisco CALTRANS)
- BASE stands for Basic Army Strategic Estimates
- BASE stands for Bank America Systems Engineering
- BASE stands for Bipolar Advanced Silicon for Europe