BZS or BZs may refer to:

• Brazilian Sign Language, by ISO 639 language code
• BZs, slang for benzodiazepines
• Code for a model of Z type carriage
• Bermuda Zoological Society, a source of support for the Bermuda Aquarium, Museum and Zoo
• Identification code for some records produced by Some Bizzare Records
• Nickname of Barisal Zilla School in Barisal, Bangladesh
• Nickname of Bogra Zilla School in Bogra, Bangladesh

• Diffuse proliferative nephritis
• Diffuser (disambiguation)
• Diffusers
• Diffuses
• Diffuse traumatic axonal injury
• Diffusing
• Diffusing-wave spectroscopy
• Diffusion
• Diffusion and Life Processes
• Diffusion Beam
• Diffusion chamber
• Diffusion cloud chamber
• Diffusion collection
• Diffusion control
• Diffusion controlled creep
• Diffusioncontrolled reaction
• Diffusion current
• Diffusion curve
• Diffusion curves
• Diffusion damping
• Diffusion gradient
• Diffusion Hardening
• Diffusion hardening
• Diffusion hypoxia
• Diffusionist