Cognomen Blhaj (بلحاج 
, Blhaj ) , in the entire world, is quite a common family name. The cognomen Blhaj is characteristic of Northern Africa, particularly Libya, where it is quite a common surname, Morocco, and Algeria, where it is quite a rare surname. Much less frequently, Blhaj is the forename as well as the last name.
Moh, Reda, Rida, Lhaj, Lhbib, Nada, Nora, Hani, Hoda, Hmad, Fati, Imad, Omar, Wafa, Zhra, Marwa, Malak, Monir, Mohmd, Morad, Mossa, Mouad, Rami, Badr, Azoz, Aziz, Med, Syf, Ali, Aya, Moha, Moad, Mjid, Salm, Sara, Sami, Mehdi, Said, Soma, Alaa, Anas, Abdo, Amal, Amin, Adam, Adil, Asma, Ayob, Simo, and Mbark