What is the origin of the last name Medeiros?

The last name Medeiros traces its origins to Portugal, specifically to the region of Medeiros or Medeiros de Aguiar in northern Portugal. Derived from the Latin word "mediator" meaning intermediate or mediator, the surname likely originated as a patronymic name, indicating descent from an individual or family associated with the Medeiros region. Over time, the name spread through emigration to various parts of the world, particularly Brazil, where it is a relatively common surname.

Countries of origin for the last name Medeiros

The last name Medeiros is a Portuguese and Galician surname that is derived from the Latin word “medius” meaning “middle”.

It is primarily found in Portugal and Brazil, but can also be found in other Portuguese-speaking countries and communities around the world.

The name Medeiros is classified as a patronymic surname, meaning it is derived from the first name of an ancestor. In this case, it is likely derived from the given name “Medeiro”, which itself is a variant of the name “Mediero”.

The surname Medeiros has variants such as Medeiros, Mederos, and Medero.

As with many surnames, the exact origins and meaning of the name Medeiros can be challenging to pinpoint with certainty. However, based on the available information, it is likely that the name originally referred to someone who lived in or near the middle of a settlement or geographic feature.

Research suggests that the name Medeiros may have originated in the region of Galicia, which is located in northwestern Spain. Galicia has historical and linguistic ties to Portugal, which could explain the prevalence of the surname in Portuguese-speaking regions.

The Medeiros surname has a rich history and it is likely that there are numerous individuals and families who bear this name and have unique stories and connections to their heritage.

Further research and investigation into specific family lineages and historical records could provide more insights into the origin and meaning of the name Medeiros for individual families.

While the available information provides a foundation for understanding the name Medeiros, there are still possibilities and undiscovered connections that may arise in the future, contributing to a deeper understanding of this surname.

Interesting facts about the last name Medeiros

  • The surname Medeiros is of Portuguese origin and is common among people with Portuguese ancestry.
  • It is derived from the Latin word “mediærus,” meaning “middle,” suggesting that the name may have originally referred to someone who lived in the center or middle part of a town or village.
  • The surname Medeiros is particularly prevalent in the Azores, a group of islands situated in the North Atlantic Ocean that belong to Portugal.
  • Medeiros is one of the most frequent surnames in the Azorean archipelago, with many families carrying this name for generations.
  • The name Medeiros may have variations in spelling, such as Madeiros or Mederos, depending on regional dialects or migration patterns.
  • Throughout history, individuals with the surname Medeiros have migrated to various parts of the world, including the United States, Canada, Brazil, and other countries with sizable Portuguese communities.
  • The surname Medeiros is not exclusive to any particular social class or occupation, and individuals with this name have pursued diverse professions and endeavors.
  • Medeiros is also a relatively common Hispanic surname, primarily found among people of Portuguese or Brazilian heritage in Spanish-speaking countries.
  • Due to the diaspora of Portuguese communities, the surname Medeiros can be encountered in different cultural contexts, sometimes leading to assimilation with local cultures and languages.
  • Genealogical research and DNA studies have been used to trace the origins and ancestral roots of individuals with the surname Medeiros, shedding light on their migration patterns and shared ancestry.

Name Rank


There are around 19031 people with the last name Medeiros in the US

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