Last name エイダ (Ada 
, エイダ 
) , in the world, is a widespread family name. The surname エイダ is characteristic of Honduras, where it is a common surname, Equatorial Guinea, and Nicaragua, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, the name is most common in Nigeria, India, and Mexico. Also, エイダ is the forename as well as the last name.