VBR

VBR may refer to:

Computing

 * Variable bitrate, in telecommunications and computing, a non-constant sound or video encoding bitrate
 * Volume boot record, in computer disks, a type of boot sector that contains code for bootstrapping programs
 * Vouch by Reference, a standard way for email certification providers to vouch for outbound email sent by others

Other

 * Reverse breakdown voltage, a diode characteristic in electronics