B30

B30 may refer to:
 * Bestune B30 or Besturn B30, a Chinese car produced by the FAW Group
 * Bundesstraße 30, a German road
 * Lockheed XB-30, an aircraft
 * Route B30 (WMATA), a bus route operating between BWI Airport and Greenbelt Metrorail Station
 * B30, a spent fuel storage pond at the Sellafield nuclear reprocessing site
 * Sicilian Defence, Encyclopaedia of Chess Openings code
 * Tsogo languages, coded B30 in the Guthrie classification of Bantu languages
 * Volvo B30, an automotive petrol engine produced by Volvo from 1968