Embodiments of systems and methods for handling multiple Eye-Gaze Tracking (EGT) sources in virtual, augmented, or mixed reality (xR) applications are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution by the processor, cause the IHS to: receive a first EGT vector from a first EGT system and a second EGT vector from a second EGT system; calculate a composite EGT vector using a first weight associated with the first EGT system and a second weight associated with the second EGT system; and render an image, in part, based upon the composite EGT vector.