Comet Wilson–Harrington is a periodic comet (formally designated 107P/Wilson–Harrington).

Little known about it distinguishes it from other comets, but for the fact that it is also designated an asteroid, 4015 Wilson–Harrington (which, incidentally, is currently the longest asteroid name with 17 characters).

The comet was discovered on November 19, 1949, by Albert G. Wilson and Robert G. Harrington at Palomar Observatory. Only three photographic observations were obtained and the comet was lost (insufficient observations to determine a precise enough orbit to know where to look for future appearances of the comet, see Lost comet).