15271 1991 DE is a main belt asteroid with an estimated diameter of 5 km. It was discovered on February 19, 1991, by T. Urata at Oohira. The semi-major axis is 2.39 AU, the eccentricity is 2.32 and the inclination is 13.09 degrees.
Observations were made on four nights during March and April 2008. The resulting lightcurve indicated a period of about 6.908 hours.