Fyodor Grigorievich Uglov (Russian: Фёдор Григорьевич Углов; 5 October (O.S. 22 September) 1904 – 22 June 2008) was in 1994 listed in the Guinness Book of Records as the oldest practicing surgeon in the world.
Uglov was born in a peasant family in Siberia near Lake Baikal. Having matriculated from the Saratov State University in 1929, he later settled in Leningrad, where he saved lives of soldiers wounded during the Winter War. He worked as a surgeon in the besieged Leningrad throughout its epic 900-day siege by the Germans, "performing surgery – often without anaesthetic, electricity or water – as the bombs rained all around".
Uglov gained a measure of renown in the 1970s with a series of publications and tracts campaigning against alcoholism (e.g., "Suicides"). He was on the cutting edge of Mikhail Gorbachev's ill-fated prohibition campaign, touring the country with his lectures and winning a Lenin Prize for his activities. At the age of 60 he married a woman half his age. Uglov did not retire from medical practice until the age of 102.