An object of the mind is an object which exists in the imagination, but can only be represented or modeled in the real world. Some such objects are mathematical abstractions, literary concepts, or fictional scenarios.

Closely related are intentional objects, what thoughts and feelings are about, even if they are not about anything real (such as thoughts about unicorns, or feeling of apprehension about a dental appointment which is subsequently cancelled). However, intentional objects can coincide with real objects (as in thoughts about horses, or a feeling of regret about a missed appointment).