Design thinking has been extensively discussed in recent years. It is well-established that design thinking is an iterative process that involves co-evolution of problem and solution. In parallel to design thinking, there is growing interest in systems thinking and computational thinking, driven by the recognition of system-level dependencies in design and the explicitly growing use of computational methods in problem-solving. While design thinking, systems thinking and computational thinking have typically been discussed separately, researchers have recently observed and highlighted the interaction between these three thinking paradigms. Accordingly, this research theoretically investigates the iterative flow between design thinking, systems thinking, and computational thinking. The article argues that these three types of thinking are intertwined, and they co-evolve during the design process. The methodological implications of this coevolution are discussed.