Family name Oruru (Oruru 
) , all around the world, is a rare last name. The family name Oruru is characteristic of Kenya, where it is quite a rare surname, Nigeria, where it is a rare surname, and Belgium, where it is a very rare surname. Measured by absolute frequency, the name is most common in Kenya, Nigeria, and the United States. Likewise, Oruru is the forename as well as the last name.