Family name Lydna (Lydna 
) , globally, is a very rare cognomen. The last name Lydna is characteristic of Latin America and the Caribbean, particularly Panama, where it is quite a rare surname, Nicaragua, where it is a very rare surname, and Chile, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Latin America and the Caribbean, particularly Panama, Nicaragua, and Mexico. Very seldom, Lydna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lydna | Philippines, Panama, Canada, Brazil, United States |