Cognomen Ngailo (Ngailo 
) , all over the world, is a common surname. The cognomen Ngailo is characteristic of Tanzania, where it is quite a common surname, and Indonesia, where it is a very rare surname.
Ati, Ivon, Otto, Wile, Wipa, Wema, Maria, Maura, Merry, Mbasa, Salim, Salum, Sammy, Simon, Susan, Swedi, Aleck, Anifa, Aneth, Adela, Asafu, Agnes, Fred, Hawa, Ezra, Emma, Atu, Mary, Musa, Sara, Alex, Anna, Amos, Adam, Adia, Boaz, Ayubu, Rose, Lucy, Jane, John, Jobu, Tatu, Tony, Noel, Nuru, Elly, Esta, Gift, and Ajina