- Cohesion (chemistry): the intermolecular attraction between like-molecules.
- Cohesion (computer science): a measure of how well the lines of source code within a module work together to provide a specific piece of functionality. In object-oriented programming, the degree to which a method implements a single function. Methods that implement a single function are described as having high cohesion.
- Cohesion (Desktop Grid Computing): a platform for distributed parallel computation, see also List of distributed computing projects
- Cohesion (geology): the part of shear strength that is independent of the normal effective stress in mass movements.
- Cohesion (linguistics): the linguistic elements that make a discourse semantically coherent.
- Cohesion (military): the bonding together of members of an organization/unit in such a way as to sustain their will and commitment to each other, their unit, and the mission (Cohesion the Human Element in Combat, William Henderson, 1985).
- Cohesion (structural): the sociological and graph theoretical conception and measurement for maximal group or graphical boundaries where related elements cannot be disconnected except by removal of a certain minimal number of other nodes
- Cohesion (band): a musical group from Manchester, England.
- Cohesion (social policy): the bonds or "glue" between members of a community or society.