Adhesion is the tendency of certain dissimilar molecules to cling together.

Adhesion may also refer to:

• Adhesion (medicine), a fibrous band that forms between tissues and organs
• Cell adhesion, the binding of a cell to another cell or to a surface or matrix
• Focal adhesion, a type of macromolecular assembly in cell biology
• Interthalamic adhesion, a band connecting the brain's two thalami
• Adhesion barrier

• Rail adhesion, a type of railway
• Adhesion contract, in law
• Adhesion (Politics)

• Adhesive
• Cohesion (disambiguation)