BGK may refer to:

Businesses and organizations

• Bank Gospodarstwa Krajowego, a Polish bank

Music

• Beyoncé Giselle Knowles, an American singer

Science

• 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

• Barangay Ginebra Kings, a professional Philippine basketball team

This disambiguation page lists articles associated with the title BGK.
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