Surname Muncibay (Muncibay 
) , worldwide, is a rare last name. The family name Muncibay is characteristic of Peru, where it is a rare surname, Venezuela, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Peru, Venezuela, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Muncibay | Peru, Venezuela, United States, Canada |