Family name Ayubu (Ayubu 
) , around the globe, is a common surname. The cognomen Ayubu is habitual in Tanzania, where it is quite a common surname, Oman, where it is quite a rare surname, and Uganda, where it is a rare surname. In absolute terms, it is commonest in Sub-Saharan Africa, particularly Tanzania, Uganda, and Nigeria. Also, Ayubu is the forename as well as the last name.