9913 Humperdinck is a main belt asteroid. It orbits the Sun once every 3.46 years. It is associated with the Flora family of asteroids.
Discovered on October 16, 1977 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld on archived photographic plates made by Tom Gehrels with the Samuel Oschin telescope at the Palomar Observatory, it was given the provisional designation "4071 T-3". It was later renamed "Humperdinck" after musical teacher Engelbert Humperdinck.