Diffusion may refer to:

• Diffusion, the spontaneous spreading of something such as particles, heat, or momentum
• Diffusion (anthropology), the flow of an idea or artifact from one culture to another
• Diffusion of responsibility
• Diffusion (cryptography), the spreading of influence of bits in a cipher
• Diffusion (business), the process by which a new idea or new product is accepted by the market
• Diffuse (computer graphics), the reflective intensity of a simulated surface's color

Difusión (desambiguación) | Diffusion