Family name Сайду (Saidu 
, Saidou 
, Saïdou ) , around the globe, is a widespread last name. The family name Сайду is habitual in Nigeria, where it is a common surname, Cameroon, where it is quite a common surname, and Libya (explore the name in all countries). In absolute terms, it is the most numerous in Nigeria, India, and Cameroon. Also, Сайду is the forename as well as the last name.