Oyokal was a terrestrial planet located in the Oyokal system of the Unknown Regions' Chiss Space. A hyperlane linked the world to the Shihon system. A quadrupedal species was native to Oyokal.
The sentient Chiss of the Chiss Ascendancy maintained Oyokal as an aquaculture colony. The planet's surface featured wave-riding algal beds and pools stocked with fish.
Oyokal was introduced in the 2009 reference book The Essential Atlas, authored by Daniel Wallace and Jason Fry, which placed it in grid square E-8.