B14 may refer to:
Transportation B14 (New York City bus) HLA-B14, an HLA - B serotype London Buses route B14 Bundesstraße 14, federal highway in Germany Martin XB-14, a variant of the Martin B-10 bomber The generation of Nissan Sentra built from 1995 to 1999 Volvo B14A engine Chery V5, a Chinese car, also known as Chery B14 B14 (dinghy), the class of sailing dinghy designed by Julian Bethwaite LNER Class B14, a class of 5 British steam locomotives
Other uses Caro–Kann Defence, Encyclopaedia of Chess Openings code B14-0,-5 and -7, a series of model rocket engines produced by Estes Industries from approximately 1968-1979 Boron-14 (B-14 or 14B), an isotope of boron