Tennis competitions at the 2008 Summer Olympics in Beijing were held from August 10 to August 17 at the Olympic Green Tennis Centre. The DecoTurf surface rendered the event a hardcourt tournament.

The women's singles event proved notable for being one of only two Olympiads — and the first since 1908 — in which all tennis medalists were from the same country. Despite their singles victories, however, the Russian women failed to advance past the quarterfinals of the women's doubles. Instead, Beijing brought the return of the gold medal to the United States, following their only failure to capture the gold since the event's re-introduction at the Seoul games.

The men's singles featured the first time an Olympic tennis player had medaled in consecutive Olympiads since the 1920 games, while the men's doubles gave Switzerland its first medal in the event. The doubles also returned Switzerland and the United States to the medals stand for the first time since the 1988 re-introduction of the sport.

The 2008 Summer Olympics, officially known as the Games of the XXIX Olympiad, was a major international multi-sport event that took place in Beijing, China, from August 8 to August 24, 2008. A total of 11,028 athletes from 204 National Olympic Committees (NOCs) competed in 28 sports and 302 events (a total of one event more than the schedule of the 2004 Games). China became the 22nd nation to host the Olympic Games and the 18th to hold a Summer Olympic Games. It was the third time that the Summer Olympic Games were held in Asia, after Tokyo, Japan, in 1964 and Seoul, South Korea, in 1988. The equestrian events were held in Hong Kong.

Beijing was awarded the Games over four competitors on July 13, 2001, having won an absolute majority of votes from members of the International Olympic Committee (IOC) after two rounds of voting. The Government of the People's Republic of China promoted the Games and invested heavily in new facilities and transportation systems. A total of 37 venues were used to host the events including 12 constructed for use at the Games. The official logo of these Olympic Games, titled "Dancing Beijing", featured a stylised calligraphic character jīng (京, meaning capital), referring to the host city. Media outlets reported unprecedented audience interest in the Games, and these Olympics had the largest television audience in Olympic history. Some politicians and non-governmental organizations criticized the choice of China as Olympic host because of the country's human rights record.

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.