It is hard to talk about human mobilities without taking into consideration how mobility is being shaped by and shaping processes of imagination. The key concepts of imagination and mobility have rich and complex genealogies. The matter is even made more complex because there are many related concepts surrounding them. Imagination is associated with images, imagery and imaginaries, whereas mobility is connected to movement, motion and migration (not to mention its imagined opposite, immobility). To be able to see the forest for the trees, I focus in this critical reflection on a discussion of the concepts themselves. One of the analytical advantages of mobility studies, a relatively novel field of study, is that it shows us how imagination (a dynamic psychological process) and imaginaries (products of the imagination) are crucial for very different forms of human (im)mobility.