Cognomen Mergulhao (Mergulhao 
) , all around the world, is quite a rare family name. The cognomen Mergulhao is characteristic of Portugal, where it is quite a rare surname, Brazil, and United Arab Emirates, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Brazil, Portugal, and India.
Mr, Agdo, Caio, Beto, Kaio, Kaua, Keit, Raul, Rosa, Rose, Rony, Rick, Rita, Ruth, Rute, Ruan, Ryan, Deny, Davi, Lais, Luis, Luiz, Abib, Luan, Abel, Anna, Ms, Ana, Ary, Cid, Rui, Tao, Edi, Eva, Fã, Iva, Ivo, Igo, Mari, Sara, Suzy, Alex, Alan, Alba, Almi, Aldo, Anay, Anny, and Jane