Examples of techniques for preventing unintended input are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes receiving, at a user device, an input. The method further comprises determining, by a processing device, whether a gaze of a user is directed to the user device. The method further comprises, based at least in part on determining that the gaze of the user is directed to the user device, authorizing the input at the user device.