Family name Guzhñay (Guzhñay 
) , all over the world, is a very rare cognomen. The last name Guzhñay is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, Venezuela, where it is an extremely rare surname, and Chile. Measured by absolute frequency, it most frequently occurs in Ecuador, Venezuela, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Guzhñay | Chile, Spain, Venezuela, Ecuador |