Surname Zaidu (Zaidu 
) , all over the world, is quite a rare last name. The last name Zaidu is characteristic of Nigeria, where it is quite a rare surname, Tanzania, where it is a rare surname, and Malaysia, where it is a very rare surname. Measured by absolute frequency, the name is most common in Nigeria, Tanzania, and India. Also, Zaidu is the forename as well as the last name.