Globally, Nancy Adelaida (Nancy Adelaida 
) is a very rare feminine forename. The forename Nancy Adelaida is habitual in Latin America and the Caribbean, particularly Peru, where it is a very rare girly name, and Chile. Very seldom, Nancy Adelaida is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nancy Adelaida | Chile, Spain, Peru, Ecuador |
Daza, Morales, and Daza Sanchez