At the 1992 Summer Olympics in Barcelona, Spain, 31 swimming events were contested. There was a total of 641 participants from 92 countries competing.

* Swimmers who participated in the heats only and received medals.

* Swimmers who participated in the heats only and received medals.

The 1992 Summer Olympic Games, officially known as the Games of the XXV Olympiad, were an international multi-sport event celebrated in Barcelona, Spain, in 1992. The International Olympic Committee voted in 1986 to separate the Summer and Winter Games, which had been held in the same year since 1924, and place them in alternating even-numbered years, beginning in 1994. The 1992 Summer Games were the last to be staged in the same year as the Winter Games. Due to the end of the Cold War, these games were the first without boycotts since 1972.

Barcelona, the birthplace of then-IOC president Juan Antonio Samaranch, was selected over Amsterdam, Belgrade, Birmingham, Brisbane and Paris in Lausanne, Switzerland, on October 17, 1986, during the 91st IOC Session. It had bid for the 1936 Summer Olympics, losing out to Berlin.

See the medal winners, ordered by sport:

169 nations sent athletes to compete in these Games (the number of competitors for each country below is given in brackets). With the dissolution of the Soviet Union, twelve states formed a Unified Team, while the Baltic States of Estonia, Latvia and Lithuania had their own teams. For the first time, Croatia, Slovenia and Bosnia-Herzegovina competed as independent nations after separation from Socialist Yugoslavia. Federal Republic of Yugoslavia was banned due to UN sanctions, but individual Yugoslav athletes were allowed to take part as Independent Olympic Participants. It was also the first Olympics since 1964 that a unified Germany competed at the Olympics. This was the Olympic debut for Namibia and the unified team of Yemen, after several separate participations of North and South Yemen. South Africa returned to the Games after 32 years. Four National Olympic Committees didn't send their athletes to compete: Afghanistan, Brunei, Liberia and Somalia.

The Summer Olympic Games or the Games of the Olympiad are an international multi-sport event, occurring every four years, organized by the International Olympic Committee. Medals are awarded in each event, with gold medals for first place, silver for second and bronze for third, a tradition that started in 1904. The Winter Olympics were also created due to the success of the summer Olympics.

The olympics have increased from a 42-event competition with fewer than 250 male athletes to a 300-event sporting celebration with over 10,000 competitors from 205 nations. Organizers for the 2008 Summer Olympics in Beijing expected approximately 10,500 athletes to take part in the 302 events on the program for the games.

The United States has hosted four Summer Olympics Games, more than any other nation. The United Kingdom will have hosted three Summer Olympics Games when they return to the British capital in 2012, all of them have been (and will be) in London, making it the first city to hold the Summer Olympic Games three times. Australia, France, Germany and Greece have all hosted the Summer Olympic Games twice. Other countries that have hosted the summer Olympics are Belgium, China, Canada, Finland, Italy, Japan, Mexico, Netherlands, South Korea, Spain, the Soviet Union and Sweden. In the 2016 Summer Olympics, Rio de Janeiro will host the first Summer Games in South America. Four cities have hosted two Summer Olympic Games: Los Angeles, London, Paris and Athens. Stockholm, Sweden, has hosted events at two Summer Olympic Games, having hosted the games in 1912 and the equestrian events at the 1956 Summer Olympics—which they are usually listed as jointly hosting. Events at the summer Olympics have also been held in Hong Kong and the Netherlands (both represented by their own NOCs), with the equestrian events at the 2008 Summer Olympics being held in Hong Kong and two sailing races at the 1920 Summer Olympics being held in the Netherlands.

Michael Fred Phelps (born June 30, 1985) is an American swimmer who has, overall, won 16 Olympic medals—six gold and two bronze at Athens in 2004, and eight gold at Beijing in 2008, becoming the most successful athlete at both of these Olympic Games editions. In doing so he has twice equaled the record eight medals of any type at a single Olympics achieved by Soviet gymnast Alexander Dityatin at the 1980 Moscow Summer Games. His five gold medals in individual events tied the single Games record set by compatriot Eric Heiden in the 1980 Winter Olympics and equaled by Vitaly Scherbo at the 1992 Summer Games. Phelps holds the record for the most gold medals won in a single Olympics; his eight at the 2008 Beijing Games surpassed American swimmer Mark Spitz's seven-gold performance at Munich in 1972. Phelps' Olympic medal total is second only to the 18 Soviet gymnast Larisa Latynina won over three Olympics, including nine gold. Phelps also holds the all-time record for most gold Olympic medals, at 14.

Summer Elisabeth Sanders (born October 13, 1972) is a sports commentator and reporter, TV show host, actress and retired Olympic gold medalist in swimming.

Sanders was born in Roseville, California and attended Cavitt Junior High School (just outside Roseville), Bishop Donahue High School (in West Virginia) and Oakmont High School there.

She first came to the attention of the swimming world in 1988 when, as a 15-year-old, she barely missed a spot on the 1988 U.S. Olympic team. She won three gold medals at the 1990 Goodwill Games before embarking on her collegiate career at Stanford University. In two years at Stanford, she compiled six individual NCAA titles and four relay championships. Sanders earned back-to-back NCAA Swimmer of the Year awards and propelled Stanford to a national championship in 1992. She also played basketball.

At the 1992 Summer Olympics in Barcelona, Spain, she won gold medals in the 200-meter butterfly and in the 400-meter medley relay. She also won a silver medal in the 200-meter individual medley and a bronze medal in the 400-meter individual medley. Her individual performances in Barcelona were identical to those a year earlier at the 1991 swimming and diving world championships in Perth, Australia. Retiring after the Barcelona Olympics, Sanders later attempted to make the 1996 Olympic team but failed to qualify.