BART stands for Bay Area Rapid Transit (San Francisco, CA)
BART stands for Baronet (title of nobility below baron)
BART stands for Best Available Retrofit Technology
BART stands for Bandwidth Available in Real-Time (networks)
BART stands for Biological Activity Reaction Test
BART stands for Balloon Analog Risk Task
BART stands for Bay Area Rural Transit (Ashland, WI)
BART stands for Bootable Antivirus Recovery Tool (software)
BART stands for Branson Area Regional Tourism (Branson, MO)