Jaja of Opobo (full name: Jubo Jubogha; 1821–1891) was a merchant prince and the founder of Opobo city-state in an area that is now part of Nigeria. Born in Umuduruoha, Amaigbo, in Igboland, he was sold at about the age of twelve as a slave in Bonny.
Jumo Jumofe later took the name "Jaja" for his dealings with the British. Jaja proved his aptitude for business at an early age, earning his way out of slavery; he was enculturated according to Ijaw (Ibani) rituals and eventually established himself as head of the Anna Pepple House. Under Jaja's leadership, Anna Pepple soon absorbed a number of Bonny's other trade houses until an ongoing dispute with the Manilla Pepple House led by Oko Jumbo forced Jaja to break away as Opobo city-state in 1869.
Opobo soon came to dominate the region's lucrative palm oil trade and was soon home to fourteen of what were formerly Bonny's eighteen trade houses. Jaja also moved to block the access of British merchants to the interior, giving him an effective monopoly; at times, Opobo even shipped palm oil directly to Liverpool, independent of British middlemen.
At the 1884 Berlin Conference, however, the other European powers designated Opobo as British territory, and the British soon moved to claim it. When Jaja refused to cease taxing British traders, Henry Hamilton Johnston, a British vice consul, invited Jaja to negotiations in 1887.
When Jaja arrived, the British arrested him and tried him in Accra in the Gold Coast (now Ghana) then took him to London for some time, where he met Queen Victoria and was her guest in Buckingham Palace. After some other turbulent history, he was exiled to Saint Vincent in the West Indies. Plans were also made for him to be relocated to Barbados. In 1891 Jaja was freed but died en route.