Ali Ezzeldin Abdelghany (born 16 June 1944 in Cairo) is an Egyptian academic and marine biologist.
Abdelghany graduated with a bachelor of science degree from Cairo University in 1967. Abdelghany received a master's degree from Auburn University in 1982 with a specialization in Fisheries Management and his doctorate in Aquaculture nutrition from the University of Idaho in 1986.
Before earning his graduate degrees, Abdelghany received a fellowship with the Food and Agriculture Organization of the United Nations. After receiving his formal education, Abdelghany returned to Egypt in 1986 and joined the Central Laboratory of Aquaculture Research at Sharqiyah as head of the department of nutrition. Since 1986, he has researched various fish-related issues, including improving dietary growth and the reduction of feeding costs by using alternative methods. He has been appointed the director of CLAR twice (1993/1994 and 2001/2002).