Aleksandar Fira (1929–2011), after finishing grammar school, enrolled at the Faculty of Law of the University of Belgrade. He graduated in 1952 and received PhD in 1959. He was a professor at the Faculty of Law in Novi Sad, and worked in the Institute of Social Sciences in 1970 and 1971. As of 1969, he was a judge of the Constitutional Court of Yugoslavia, while he was the Chair of this court from 1982 to 1990. He was also Chair of the Constitutional Court of Vojvodina from 1974, Chairman of the Federal Legislative Committee and a member of the Federal Executive Council from 1975 to 1982, as well as a professor at the Faculty of Political Sciences from 1990 to 1994.
He became a corresponding member of the Academy of Sciences and Art of Vojvodina in 1979, while from 1988 to 1990, he was the President of its Presidency. After the integration of the Vojvodina Academy into the Serbian Academy of Sciences and Arts, he became a member of the SASA and its Department of Social Sciences.
From 1997, he was a full member of the Academy of Sciences and Arts of Central Europe. In the SASA, he actively worked in the Interdepartmental Board for National Minorities and Human Rights Issues and Board for the Study of Serbian Law Sources, of which he was the president.
He received the Order of Labour with Golden Laurel, Order of Military Merit with Silver Swords, Order of Fraternity and Unity with Golden Laurel and Order of the Republic with Silver Laurel.