Last name Сайфу (Saifu 
, Сайфу 
) , in all the world, is quite a rare cognomen. The surname Сайфу is characteristic of Western Asia, particularly Oman, where it is quite a rare surname, United Arab Emirates, and Qatar. In absolute terms, the name is most common in Bangladesh, Saudi Arabia, and Malaysia. Also, Сайфу is the forename as well as the last name.