(163364) 2002 OD20

 is an asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, likely smaller than one kilometer in diameter.

It was scheduled to be observed by Goldstone radar in May 2013. It has a well determined orbit and made a close approach to Earth on 23 May 2013, at a distance of 0.0387 AU. It is due to make another close pass on 23 May 2131, coming as close as 0.0248 AU. It was discovered on 21 July 2002 by astronomers of the Near-Earth Asteroid Tracking survey at Palomar Observatory in California. With an absolute magnitude of 18.8, the diameter is estimated to between 460 and 1030 meters.