Emil Stefanov Djakov (born 2.03.1908) is a Bulgarian physicist and a member of the Bulgarian Academy of Sciences (1967). He was born in Svishtov. He graduated from Sofia University (1931). In 1939-67 he worked at Sofia University (professor from 1942 and in 1948—55 director of the Physical Institute at the university). In 1955—63 he also worked at the Physical Institute of the Bulgarian Academy of Sciences, and from 1963 he has been director of the Institute of Electronics of the Bulgarian Academy of Sciences. In 1959—61 he was deputy director of the Joint Institute for Nuclear Research (Dubna).
His research is in the field of physical and applied electronics.
Dimitrov Prize (1952).