Fazlollah Reza (Persian: فضل‌الله رضا; January 1, 1915 – November 19, 2019) was an Iranian scientist, academic, and diplomat known for his pioneering contributions to electrical engineering and information theory.

Reza made significant advancements in the field of network theory and cybernetics, publishing influential research that contributed to the development of modern communication systems.

His leadership helped shape Iran's academic landscape, fostering research and innovation in engineering and technology.

Later in his career, he also took on diplomatic responsibilities, representing Iran as its ambassador to Canada and UNESCO.

Throughout his lifetime, Reza received numerous honors for his contributions to both academia and international relations, cementing his legacy as a key figure in Iran's scientific and educational history.