BGK may refer to:
Businesses and organizations edit
- Bank Gospodarstwa Krajowego, a Polish bank
Music edit
- Beyoncé Giselle Knowles, an American singer
Science edit
- Bernstein–Greene–Kruskal modes, a type of nonlinear electrostatic wave that propagates in a collisionless plasma
- Bhatnagar–Gross–Krook operator, a collision operator used in Lattice Boltzmann methods
- BgK, a neurotoxin found within the mucous secretions of sea anemones
Sports edit
- Barangay Ginebra Kings, a professional Philippine basketball team