In Epistemology, Coherentism is an internalist theory of belief justification which maintains that individual beliefs receive epistemic justification from the degree to which they are coherent with the larger set of beliefs of the cognizer. That is, the more a belief is coherent with the rest of a cognizer's beliefs, or some coherent sub-set of beliefs, the more epistemically justified someone will be in holding that belief.

Coherentism differs from Foundationalism in that no beliefs are thought to have special (i.e., self-justifying) status.