The Lotuka, also known as Lotuko or Latuka, are Otuho-speaking and are considered a Nilotic ethnic group whose traditional home is the Eastern Equatorial state of South Sudan, considered East-Central Africa.

The basic social unit of the Lotuka is the Hang, which are people who consider themselves as descendants of a common ancestor in a patrilineal sequence. Individual strangers could be adapted to a Hang and become part of it. They keep large herds of cattle, sheep and goats, and supplement this with hoe-farming, hunting, and fishing.  Land is owned by no single person, but in trust by the community

Their primary religion is an ethnic religion based on nature and ancestor worship that is deeply rooted in their ethnic identity; conversion to another religion essentially equates to cultural assimilation. The chief god of the Otuho-speaking people is called Ajok; he is generally seen as kind and benevolent but can be angered.