All around the world, Nancy Mary (Nancy Mary 
) is a very rare principally female, but scarcely boy's first name. The first name Nancy Mary is habitual in Latin America and the Caribbean, particularly Peru, where it is a rare feminine name, and Chile, where it is a very rare feminine name. Much less frequently, Nancy Mary is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nancy Mary | Australia, Chile, United States, Peru, Ecuador |