Abstract: Examples are disclosed herein that relate to sharing of depth-referenced markup in image data. One example provides, on a computing device, a method comprising receiving image data of a real world scene and depth data of the real world scene. The method further includes displaying the image data, receiving an input of a markup to the image data, and associating the markup with a three-dimensional location in the real world scene based on the depth data. The method further comprises sending the markup and the three-dimensional location associated with the markup to another device.