One prominent application of quantum mechanics is in the development of new imaging methods. In quantum ghost imaging, a photon that did not interact with the object is used to produce an image using its entanglement with a photon that did, while in quantum illumination low numbers of entangled photons are used to detect objects in situations where classical illumination would be overpowered by the surrounding thermal background. Other entanglement-based imaging methods such as entangled photon microscopy and quantum optical coherence tomography allow advantages such as greater subsurface imaging depth and higher resolution that make them promising tools for biomedical imaging applications. In this chapter, we discuss some of these methods.