A fictional character in David Hume’s Dialogues Concerning Natural Religion.

Demea represents the less philosophically inclined person: someone willing to accept theological and philosophical doctrines with less than adequate evidence.

In the context of the Dialogues, Demea prefers the Ontological Argument for God’s existence as it is supposed to yield a necessary conclusion. He is far less comfortable with a posteriori arguments like the Teleological Argument since they only provide probable conclusions.