丁卡人（Dinka people），是南苏丹的一个民族，根据2008年苏丹人口调查，丁卡总人口约450万。

在加札尔河州、上尼罗州以及白尼罗河流域的广袤地域上，分布着大大小小二十多个丁卡部落，每个部落的聚居虽然彼此毗邻，但是受到自然环境的阻隔而分隔开来。这些部落往下又分为几“分支部落”（或称之为“子部落”），分支部落之下又可细分为由几个家庭组成临时或长久一起放牧的“群体”（或称之为“小部落”），他们各自占据着可以为们的牛群提供丰沛的水源和牧场。而这些居住在一个部落或者之下子部落甚至小部落的人来说，他们之间不都存在血缘关系。氏族是丁卡人眼中最大的血亲戚的联合体，几个氏族之间会承认在父系上有关系。一个氏族之下分为几个宗，这种宗族是源自于一个共同祖先的不同的继嗣分支，可将这些分支暂称大宗。把最大宗族之下的分支称为小宗，把小宗之下的分称为门中，把门中之下的分支称为房。房就是当个人被问及他是哪个宗族的时候，他所提及的那个。这样看来，宗族就是组或已去世、或仍在世的男性亲属，在他们之间，可以从谱系上推溯亲属关系。丁卡族的孩子，从小就被教育要以自己的氏族为荣。只要一个丁卡的小男该会说话了，他的家人就会教给他不断重复父亲一方祖先的名字。所有的孩子都能往上说出十几代祖先的名字。一个孩子的全名——同时也是对他身份的一个完整表述——就是他的祖先们，即所有声称是氏族创始人后裔的全部名字的组合。由于有这个风俗，丁卡人才能同朋友和邻居追宗论祖。

The Dinka people are an ethnic group inhabiting the Bahr el Ghazal region of the Nile basin, Jonglei and parts of southern Kordufan and Upper Nile regions. The Dinkas are mainly agripastoral people, relying on cattle herding at riverside camps in the dry season and growing millet (awuou) and other varieties of grains (rap) in fixed settlements during the rainy season. They number around 4.5 million people according to the 2008 Sudan census, constituting about 18% of the population of the entire country, and the largest ethnic tribe in South Sudan. Dinka, or as they refer to themselves, Muonyjang (singular) and jieng (plural), one of the branches of the River Lake Nilotes (mainly sedentary agripastoral peoples of the Nile Valley and African Great Lakes region who speak Nilotic languages, including the Nuer and Luo). Dinka are sometimes noted for their height. With the Tutsi of Rwanda, they are believed to be the tallest people in Africa. Roberts and Bainbridge reported the average height of 182.6 cm (5 ft 11.9 in) in a sample of 52 Dinka Ageir and 181.3 cm (5 ft 11.4 in) in 227 Dinka Ruweng measured in 1953–1954. However, it seems the stature of today's Dinka males is lower, possibly as a consequence of undernutrition and conflicts. An anthropometric survey of Dinka men, war refugees in Ethiopia, published in 1995 found a mean height of 176.4 cm (5 ft 9.4 in). Other studies of comparative historical height data and nutrition place the Dinka as the tallest people in the world.