Intelligence is generally viewed as the crowning attribute of mind. It follows that multimodal DCT, being a theory of mind, is also a theory of intelligence. All of its structural, processing, and functional principles are directly applicable to the mental capacities that define intelligence. What is required in addition is a switch in emphasis from the general properties of dual coding systems to individual differences in such properties. Individual differences have long been part of the DCT research program as one of the classes of operations used to define and test DCT constructs and hypotheses. This aspect is systematically applied here to the phenomenal domain covered by traditional approaches to intelligence. We see that the emphasis arises quite naturally from the historical distinction between verbal and nonverbal factors in psychometric tests of intelligence, and DCT has even been compared to an influential testing approach to intelligence. I describe those “natural” dual coding connections to psychometric and other traditional approaches to intelligence, and also identify what they lack when viewed from the DCT perspective. A long-term research program would be required to fill that gap and thereby develop a complete dual coding theory of intelligence. All I can do here is present a prolegomenon to such an enterprise.