The Dinokeng Game Reserve is a wildlife reserve in the province of Gauteng, South Africa and can be accessed via the N1 route. It is a 40-minute drive from Pretoria or 75 minutes from the O. R. Tambo Airport and Johannesburg. The reserve has the Big Five game animals, and is open for visitors to explore. It covers an area of approximately 21,000 hectares. The name, Dinokeng, is derived from the language of the Tswana and Bapedi people, and is translated as “a place of rivers”.

The Dinokeng Game Reserve is part of the Gauteng government's “Blue IQ" project (an entity of the Gauteng Department of Economic Development). The Gauteng Provincial Government established the Dinokeng Game Reserve to promote ecotourism in the region. In 1997, the then Premier of Gauteng, Tokyo Sexwale, announced a project to develop “Big Five” wild animal sanctuaries in the northeastern part of Pretoria. The main purpose of the government to establish Dinokeng Game Reserve was to develop tourism through the use of local natural resources, thereby increasing the employment rate and living conditions of local people.

The project was intended to support local socio-economic development by creating tourist destinations in historically disadvantaged areas. The development plan involved collaboration between the provincial government and local landowners to attract private sector investment for a tourism-based economy. The Gauteng Provincial Government and more than 170 landowners have developed the concept that ecotourism can be a source of sustainable rural employment for rural communities. The formal planning of Dinokeng and negotiations with landowners began in early 2000, and Dinokeng Game Reserve was officially opened on September 22, 2011. Big Five animals such as leopard, lion, elephant, and buffalo were gradually re-introduced. With the re-introduction of a group of black rhinoceros in 2018, the reserve contained all of the Big Five game animals.

Dinokeng Game Reserve is located in Hammanskraal, north of Pretoria, in northeast Gauteng, 130 km (81 mi) from Johannesburg, close to the western N1 and N4 motorways. It covers an area of approximately 21,000 ha (52,000 acres). It has a latitude of between 25°40'00"S and 25°10'00" and a longitude of between 28°15'00"E and 28°40'00"E, including the current 18,500 ha (46,000 acres).

The Dinokeng area experiences summer rainfall patterns in the form of thunderstorms, which are changeable and varied. Most of the rainfall occurs during the summer, and from December to February, temperatures rise to more than 20 degrees. Rainfall varies from 350 mm (14 in) to 750 mm (30 in) per season. In winter, from May to August, the temperature is relatively mild, sunshine is sufficient, but the temperature difference is large in one day, cold in the morning and evening, and sometimes may drop to zero. During a year, the temperature varies between 0° and 40° with a long-term daily average of 21°. The south area of Dinokeng has a relatively mild climate with hot summers and usually rains in the afternoon. It is cool to very cold in winter. The Dinokeng Game Reserve is free of malaria.

In addition to the Big Five animals (lion, leopard, elephant, cape buffalo and rhinoceros), there are cheetahs, giraffes, zebras, brown hyenas, wildebeests, red hartebeests, tsessebe, eland, kudu, impalas, monkey, hippopotamus and crocodiles. And more than three hundred species of birds, including ostrich, osprey, a pair of breeding martial eagles, the endangered blue crane, guineafowl, herons, the avocet, stilt, jacana and various plovers, go-away-bird, hornbills, kingfishers, woodpeckers, shrikes, larks, bulbuls, swallows, starlings, thrushes, weavers and waxbills. Martial eagles have been classified as a vulnerable species by the IUCN. The reserve is notable for bird watching, containing a number of bird species comparable to sites like Ndumo Game Reserve in KwaZulu-Natal. Due to the unique environment, the relatively close positions of water, grass and bush, various groups of birds are attracted.

Many adventure tourism companies are located in the metropolitan areas of South Africa, which is an important part of the South African urban tourism market. Dinokeng is one of the popular tourist destinations in Gauteng that offers the natural, historical and cultural sites for visitors. The area includes four tourist hubs: Dinokeng Central, A Birder's Paradise, the Roodeplaat Dam, and the Dinokeng Game Reserve. Boat cruises, self-drive tours, professional game-drives, cultural tours, fishing, spa treatments, hot air ballooning, and restaurants are located in the reserve. In the Dinokeng Game Reserve, users of self-driving routes can choose from three different picnic sites along the route. These picnic sites are built and maintained by private landowners who do not charge for use unless they want visitors to leave these locations. Like most picnic spots in the game reserve, these areas are not fenced.

Dinokeng game reserve partnered with the South African government to enforce laws that protect the natural resources of protected areas. Dinokeng Game Reserve is divided into a northern and southern section by the Rust de Winter tar road, with the northern section containing predominantly sweet-veld grasses and the southern section containing predominantly sour-veld grasses. Due to the differing vegetation, herbivores are more abundant in the northern section of the Dinokeng Game Reserve, and in turn, more predators are found in the northern section of the game reserve. Most employees in Dinokeng Game Reserves are local residents living in protected areas and local residents from the communities surrounding the Reserve.