2015 KG163

, also known as, is a trans-Neptunian object from the outermost region of the Solar System, approximately 102 km in diameter. It was first observed on 24 May 2015, by astronomers of the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea Observatories, Hawaii, United States. With an observation arc of 2 years, it passed perihelion around August 2022 at a velocity of 6.5 km/s with respect to the Sun.

It is one a small number of detached objects with perihelion distances of 30 AU or more, and semi-major axes of 250 AU or more. Such objects can not reach such orbits without some perturbing object, which lead to the speculation of Planet Nine. Its argument of perihelion is similar to that of, but its semi-major axis is larger, such that its orbit may cross that of Planet Nine.