Surname イサ (Isa 
, Isah 
, イサ 
) , all over the world, is a prevalent cognomen. The family name イサ is habitual in Nigeria, where it is a common surname, Bahrain, and Malaysia (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Nigeria, India, and Malaysia. Also, イサ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isa | India, Indonesia, Ethiopia, Nigeria, Malaysia |
| Isah | Brazil, India, Indonesia, Nigeria, Malaysia |
| イサ | Japan |