B117 most often refers to B.1.1.7, a variant of COVID-19 virus SARS-CoV-2.

B117 may also refer to:

B. 117, a musical composition by Dvořák ASTM B117, a corrosion standard Blériot 117 (B-117), a 1920s airplane

See also

Lockheed F-117 Nighthawk, a fighter-bomber BOLT-117, a laser-guided bomb 117 (disambiguation) B17 (disambiguation)