Donald Peter Greenberg (born 1934) is the Jacob Gould Schurman Professor of Computer Graphics at Cornell University.
Greenberg earned his undergraduate and Ph.D. degrees from Cornell University, where he played on the tennis and soccer teams and was a member of Tau Delta Phi and the Quill and Dagger society.
In the late 1960s, Greenberg constructed the so-called "flying diaper" sculpture, which currently stands at the entrance of the Cornell Botanic Gardens.
In 1971, Greenberg produced an early sophisticated computer graphics movie, Cornell in Perspective, using the General Electric Visual Simulation Laboratory with the assistance of its director, Quill and Dagger classmate Rodney S. Rougelot.
Prior to teaching at Cornell, Greenberg was a consulting engineer with Severud Associates, working on famous structures like the St. Louis Arch and Madison Square Garden.