DATOOK USOKO (Formal: Captain Matari Datook Sri Usoko) is a Minmatar Capsuleer pilot and galatic entrepreneur. He is one the first trainees to achieve the rank of capsuleers in the shortest time possible, and is also the main catalyst for the victory of the Minmatar fleet against the drifter hive invasion.

Datook Usoko became an interstellar celebrity during the victory against the drifter hive, and was awarded several medals and titles, including Hero of the Visaya-Minmatar Union, His tribe's highest honour. Datu Makatunaw is his first spaceflight, but he served as backup crew to several interplanetary missions previously. Usoko later became deputy training director of the Capsuleer Training Centre in Visaya XI, which was later named after him.