Family name Ithan (Ithan 
) , around the world, is a rare surname. The last name Ithan is habitual in Spain, where it is a very rare surname, Malaysia, and Nigeria. Measured by absolute frequency, it most frequently occurs in India, Nigeria, and Spain. More frequently, Ithan is the forename as well as the last name.
San, Santos, Peltan, Garcia, Felsen, Zimmer, Martins, Morales, Sanchez, Sperlein, Barreto, Barbosa, Pereira, Velasco, Martinez, Sandoval, Carvalho, Castillo, Guerrero, Gonzalez, Oliveira, Rodriguez, Mendes, Hernandez, Mendez, Lopez, Cil, Mora, Cruz, Rosa, Diaz, Lima, Hunt, Zinn, Silva, Soria, Sokol, Smith, Alves, Costa, Brown, Kamil, Payne, Ramos, Rocha, Reyna, Levin, Ortiz, and Rodríguez