Khudu Surkhay oglu Mammadov (; 14 December 1927 – 15 October 1988), was a Soviet-Azerbaijani scientist, screenwriter, and nationalist ideologist. Mammmadov was a member of Azerbaijan Academy of Sciences and Doctor of Geological and Mineralogical Sciences. Life Khudu Surkhay oglu Mammadov was born on 14 December 1927, in Mərzili, Agdam District of Azerbaijani SSR, then Soviet Union. He finished his secondary education in Agdam, and got accepted to Geology Department of the Geology-Geography Faculty of the Azerbaijan State University. Mammadov finished his tertiary education in 1951 with an honors diploma. He was later assigned to the Institute of Chemistry of the Azerbaijan Academy of Sciences. Khudu Mammadov then received post-graduate course at the Institute of Crystallography of the USSR Academy of Sciences. The first subject of his Ph.D. dissertation was "Determination of the structure of borosilicate-axinite mineral". But on the eve of the acquisition of experimental materials to reveal the structure, Japanese researchers determine the structure of this mineral. In 1955, Mammadov successfully defended his dissertation on the "Crystal structure of xonotlite and wollastonite minerals" on the specialty of "Crystallography and Crystallophysics" at the Scientific Council of the Institute of Crystallography of the USSR Academy of Sciences. From 1957 he worked as the head of the laboratory of the structural chemistry of the Institute of Inorganic and Physical Chemistry of the Azerbaijan Academy of Sciences. His main scientific work is in the field of crystal chemistry. As a result of several years of research, Khudu Mammadov wrote the monograph of "Crystal chemistry of calcium silicates and hydrosilicates" in 1960. Khudu Mammadov met with J. D. Bernal on several occasions, and in 1966 he worked at this laboratory for a year. He was awarded the title of Doctor of Geological and Mineralogical Sciences in 1970, and Professor in 1973. Khudu Mammadov became corresponding member of the Azerbaijani Academy of Sciences in 1976. He is the author of 250 scientific works, 10 certificates of authorship, and 3 monographs. Under Mammadov's supervision, 10 doctors of sciences and 35 doctors of philosophy were trained. Khudu Mammadov was awarded the Order of the Badge of Honour in 1967, the Order of the Red Banner of Labour in 1986, the Honorary Decree of the Supreme Soviet of the Azerbaijan SSR, and several medals. Khudu Mammadov died on October 15, 1988, in Baku. In 1990, Khudu Mammadov was posthumously awarded the Mammad Amin Rasulzadeh Prize by the