Bulgaria competed at the 1964 Summer Olympics in Tokyo, Japan. 63 competitors, 56 men and 7 women, took part in 56 events in 9 sports.
Bulgaria competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden.
Thomas Lange is a German rower who won two gold and one bronze Olympic medals in the single sculls.
Stefan Nimke is an Olympic and world champion track cyclist from Germany.
Maria Bengtsson is a badminton player from Sweden who played in three editions of Olympic games in 1988, 1992 and 1996.
Artur Olech was a Polish boxer. He was born in Lviv, Ukrainian SSR, Soviet Union and died in Wroclaw, Poland.
The following is the list of squads that took part in the men's water polo tournament at the 1964 Summer Olympics.
Ștefan Haukler was a Romanian fencer and coach.
Stefan Atanasov Abadzhiev is a former Bulgarian football forward who played for Bulgaria in the 1966 FIFA World Cup. Abadzhiev played the majority of his club career for Levski Sofia, spending fifteen years at the club. With Levski, he won three league titles and four Bulgarian Cups. He also competed in the men's tournament at the 1960 Summer Olympics.
Štefan Matlák was a Slovak football player who competed in the 1964 Summer Olympics.
Ştefan Stîngu is a Romanian former wrestler who competed in the 1964 Summer Olympics, in the 1968 Summer Olympics, and in the 1972 Summer Olympics.
Stefan Brykt is a Swedish former cyclist. He competed in the individual road race event at the 1984 Summer Olympics.
Stefan Weinrich is a German former swimmer. He competed in the men's 400 metre individual medley at the 1964 Summer Olympics, finishing fourth in his heat and not proceeding to the finals.
Stefan Peter is a German swimmer. He competed in three events at the 1984 Summer Olympics for West Germany.
Jan Štefan is a Czech rower who represented Czechoslovakia. He competed at the 1964 Summer Olympics in Tokyo with the men's coxed four where they were eliminated in the round one repêchage.
Stefan Stoykov is a Bulgarian rowing coxswain.
Stefan Scholz is a German rower. He competed in the men's coxless four event at the 1996 Summer Olympics.
Stefan Förster is a German boxer. He competed at the 1972 Summer Olympics and the 1976 Summer Olympics for East Germany. At the 1972 Summer Olympics, he defeated Les Hamilton and Mayaki Seydou, before losing to Alfonso Zamora.
Les Hamilton is a Canadian boxer. He competed in the men's bantamweight event at the 1972 Summer Olympics. In the first round he lost to Stefan Förster of East Germany.
Ştefan Kroner is a Romanian water polo player. He competed at the 1960 Summer Olympics and the 1964 Summer Olympics.
