Family name Bayyu (Bayyu 
) , throughout the world, is a rare last name. The cognomen Bayyu is habitual in Indonesia, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and India. More prevalently, Bayyu is the forename as well as the last name.
Aji, Saputra, Anggara, Adhitya, Pradana, Pratama, Renaldy, Danlami, Sanjaya, Handoyo, Sunggoro, Setiawan, Abdullah, Prasetyo, Dermawan, Hermawan, Cahyaputra, Firdaus, Kurniawan, Maulana, Widodo, Beg, Bayu, Osan, Zhou, Ardhi, Cahya, Putra, Wibowo, Reddy, Indra, Satria, Bajjra, Bening, Khobar, Kusuma, Pacekelan, Fajar, and Pamungkas