Suren Yurievich Arakelov (Russian: Суре́н Ю́рьевич Араке́лов) (born October 16, 1947 in Kharkiv) is a Soviet-Ukranian mathematician of Armenian descent, best known for the influential theory that bears his name. Arakelov theory was exploited by Paul Vojta to give a new proof of the Mordell conjecture and by Gerd Faltings in his proof of Lang's generalization of the Mordell conjecture. From 1965 onwards he attended the Mathematics department of Moscow State University, where he graduated in 1971. He obtained his "candidate of science" title in 1974 at the Steklov Institute in Moscow, under the supervision of Igor Shafarevich. He then worked as a junior researcher at the Institute of Oil and Gas in Moscow until 1979, when he abandoned scientific research. He was reported by some to have developed schizophrenia, though one should note that the diagnosis of schizophrenia was very frequently used (and abused) in the Soviet Union (see Sluggish schizophrenia).
Now he is living in Moscow with his wife. They have three children and three grandchildren. Some of his mathematician friends are still keeping in touch with him.