B26, B-26 or B.26 may refer to:
Games Sicilian Defence, Encyclopaedia of Chess Openings code
Military BAM B26, a pellet gun manufactured in China Blackburn B.26 Botha, a British World War II torpedo bomber Douglas A-26 Invader, an American Cold War bomber, which was designated B-26 from 1948 until 1962 Fokker B 26, a proposed dive bomber derived from the G.I for the Swedish Air Force Martin B-26 Marauder, an American World War II bomber Soviet submarine B-26, a Type IXC/40 U-boat originally built for Nazi Germany's Kriegsmarine during World War II and re-commissioned by the Soviet Navy for use during the Cold War
Transportation Bundesstraße 26, a road in Germany B26 (New York City bus), an American bus route