Foundation may refer to:

• A type of makeup.
• The supporting part of the honeycomb in a beehive.
• Foundation (architecture) - the portion of a building's structure that serves to transfer the weight of the building into the ground itself. Most foundations extend underground, and the foundations of large buildings often penetrate the bedrock.
• Foundation (charity) - a kind of philanthropic organization, set up as a legal entity either by individuals or institutions, with the purpose of distributing grants to support causes in line with the goals of the foundation.
• Foundation Kit - NeXT's Foundation Kit is described in the OpenStep specification.
• Foundation (novel) and The Foundation Series - a series of books written by Isaac Asimov.
• The Foundation, a loose-knit group of emcees affiliated with Gangstarr.