Subsumption may refer to:
- A minor premise in symbolic logic (see syllogism)
- The Liskov substitution principle in object-oriented programming
- Subtyping in programming language theory
- Subsumption architecture in robotics
- A subsumption relation in category theory, semantic networks and linguistics, also known as a "hyponym-hypernym relationship" (Is-a)
- Formal and real capitalist subsumption describes different processes whereby capital comes to dominate an economic process. Coined in Karl Marx's Capital, Volume I
- Theta-subsumption, a decidable entailment relation between clauses