Ayub Khan Ommaya, MD, ScD (h.c.), FRCS, FACS (April 14, 1930, in Mian Channu – July 11, 2008, in Islamabad) was a Pakistani American neurosurgeon and the inventor of the Ommaya reservoir.
The reservoir is used to provide chemotherapy directly to the tumor site for brain tumors.
Ommaya was also a leading expert in traumatic brain injuries.
Ommaya was featured in the article "The Muslims who shaped America – from brain surgeons to rappers" A review article published in 2016 highlights his academic and neurosurgical contributions.