Uganda, officially the Republic of Uganda, is a landlocked country in East Africa. Uganda is bordered on the east by Kenya, on the north by South Sudan, on the west by the Democratic Republic of the Congo, on the southwest by Rwanda, and on the south by Tanzania. The southern part of the country includes a substantial portion of Lake Victoria, shared with Kenya and Tanzania. Uganda lies within the Nile basin, and has a varied but generally equatorial climate.

The country is located on the East African plateau, lying mostly between latitudes 4°N and 2°S (a small area is north of 4°), and longitudes 29° and 35°E. It averages about 1,100 metres (3,609 ft) above sea level, and this slopes very steadily downwards to the Sudanese Plain to the north. However, much of the south is poorly drained, while the centre is dominated by Lake Kyoga, which is also surrounded by extensive marshy areas. Uganda lies almost completely within the Nile basin. The Victoria Nile drains from the lake into Lake Kyoga and thence into Lake Albert on the Congolese border. It then runs northwards into South Sudan. One small area on the eastern edge of Uganda is drained by the Turkwel River, part of the internal drainage basin of Lake Turkana.

Around forty different languages are regularly and currently in use in the country. These fall into three main language families: Bantu, Nilotic and Central Sudanic. English became the official language of Uganda after independence, and Ugandan English is a local variant dialect.
The most widely spoken local language in Uganda is Luganda, spoken predominantly by the Ganda people (Baganda) in the urban concentrations of Kampala, the capital city, and in towns and localities in the Buganda region of Uganda which encompasses Kampala. The Lusoga and Runyankore-Rukiga languages follow, spoken predominantly in the southeastern and southwestern parts of Uganda respectively.

According to the census of 2002, Christians made up about 84% of Uganda's population. The Roman Catholic Church has the largest number of adherents (41.9%), followed by the Anglican Church of Uganda (35.9%). Evangelical and Pentecostal churches claim the rest of the Christian population. There's a growing number of Presbyterian denominations like the Presbyterian Church in Uganda, the Reformed Presbyterian Church in Uganda and the Evangelical Free Church in Uganda with hundreds of affiliating congregations. The next most reported religion of Uganda is Islam, with Muslims representing 12% of the population.[106] The Muslim population is primarily Sunni; there are also minorities who are Shia, non-denominational Muslims and those belonging to the Ahmadiyya Muslim Community. The remainder of the population follow traditional religions (1%), Baha'i (0.1%), other non-Christian religions (0.7%), or have no religious affiliation (0.9%).