
Chamorro surnames are those of the indigenous inhabitants of the Mariana Islands, a crescent-shaped archipelago in the northwestern Pacific Ocean, south-southeast of Japan. Today the Mariana Islands consist of two U.S. unincorporated territories, Guam and the Northern Mariana Islands, the later a Commonwealth in political union with the United States. There is also a substantial Chamorro (also called Chamoru) population in the United States, concentrated in California, Washington state and in Hawaii[1].
Chamorro history, society and cultureChamorro history, society and culture

The Chamorro people ("Chamorros") have a long and rich history. It is believed that they arrived in the Mariana Islands thousands of years ago from south east Asia. Their culture is a blend of indigenous traditions with Spanish, German, American and Japanese influences arising from their periods of administrative control over the Islands[2].
This article provides a handy summary of early Chamorro life, society, beliefs and language. It discusses the impact on the Chamorros of the centuries of Spanish rule, the Japanese occupation during World War II and post-WW2 political developments. The article also highlights that the steady migration of Chamorros, especially young people, to the U.S. mainland is both diluting Chamorro identity and encouraging an effort by others in their community to preserve and promote Chamorro language and culture.
Common Chamorro surnamesCommon Chamorro surnames

As with many other indigenous peoples the Chamorros traditionally did not use surnames. Each person was known by a first name and sometimes their clan association. Family lineage was traced through oral history and clan association rather than hereditary surnames[3]. Traditional Chamorro society was matrilineal and matriarchal. Children belonged to their mother’s clan and inherited her family name[4].
Surnames are a product of the intrusion into their lands and society from wave after wave of foreign traders, missionaries, immigrants and administrators going back more than 500 years. The word Chamorro, as an ethnic identifier, is itself of Spanish origin[5].

When Spanish missionaries began to convert Chamorros to Christianity from the late 17th century onwards they gave the converts a new first name (typically of a Christian saint and making the person's original Chamorro name their surname. As a result even close blood relatives ended up with different surnames. This makes researching Chamorro family trees over the period of Spanish rule particularly difficult[6].
This article sets out the origin and meaning of Chamorro surnames first recorded in 18th century Spanish censuses. Many early Chamorro surnames were descriptive or action words, such as Ge’hilu’ ("further up"), Tainahung ("never satisfied") and Mamaisa ("to be alone"). Some of these surnames survive today.
The article also lists additional surnames among the Chamorros which were first documented by American and German academics during the first half of the 20th century and which reflected spelling and other changes to original Chamorro surnames which took place during the period of American Naval Administration (1899-1941).
Another article lists some of the most common Chamorro surnames today, derived from a Chamorro Roots Genealogy Project database comprising almost 330,000 names. Some of the most common are:
Chamorro surnames of Spanish originChamorro surnames of Spanish origin

- Cruz - "cross" in Spanish
- Duenas - from dueñas, "owners" in Spanish
- Santos - "saints" in Spanish
- Perez - "son of Peter"
- Salas - "halls", probably referring to a place with large rooms, like a manor
- Camacho - the old Spanish name for the robin bird
- San Nicolas - "Saint Nicholas"
- Borja - from the town of the same name near Zaragoza
- Crisostomo - of strong religious origin, associated with Saint John Chrysostom, cited 18 times in the Catechism of the Catholic Church
- Blas - derived from the Latin name Blasius, meaning "lisping" or "stuttering"
- Mesa - "table", probably referring to a flat place
- Leon Guerrero - combined surname, meaning "warrior lion"
- Reyes - "Kings"
- Lujan- believed to have Basque origins, possibly derived from "luxa" meaning "place of reeds" or "muddy place"
- Guerrero - "Warrior"
- Castro- of Galician origin, derived from the Latin word "castrum," meaning "castle" or "fortress"
- Mendiola - of Basque origin, of Basque origin, meaning "place of the mountain" or "mountain house"
- Torres - Towers
Chamorro surnames of indigenous originChamorro surnames of indigenous origin

- Manibusan - derived from the Chamorro word "manibus," which means "to gather" or "to collect"
- Quinata- while some sources suggest it may be related to the Spanish surname Quintana, which means "country house" or "fifth born", no meaning has been confirmed
- Pangelinan - believed to be a cognate of the Filipino surname Pangilinan.
- Meno - "garbage"
- Aguon - "food staple" or "starchy food, common in the Hagåtña or Humåtak regions
- Toves- no meaning has been confirmed
- Sablan - believed to be derived from the Ibaloi word sabdang, the name of the tree Erythrina subumbrans
- Chargualaf - some sources suggest a possible connection to the Chamorro word "gualafun" meaning "full moon"
- Taitano - "landless"
- Babauta - "banner" or "symbol"
Notable people of Chamorro originNotable people of Chamorro origin

- Pia Mia Perez - Guamanian singer, songwriter, and actress.
- Angel Santos - Chamorro rights advocate and former Guam Senator.
- Craig Santos Perez - Guamanian poet and essayist, recipient of the 2023 National Book Award, a 2015 American Book Award and the 2011 PEN Center USA Literary Award for Poetry
- Zach Banner - NFL football player of mixed African American and Chamorro descent
- Peter Gumataotao - The first Chamorro two-star flag officer in the United States military.
- Gregorio Sablan - Delegate to the U.S. House from the Northern Mariana Islands.
- Vincente (Ben) Blaz - A 4-star General in the Marine Corps.
- Jon Tuck - Mixed martial artist and the first Chamorro from Guam signed to the UFC.
- Ricardo Blas, Jr. - Olympic Judo Athlete from Guam
- Madeleine Bordallo - Former US Congresswoman representing Guam.
- Antonio Borja Won Pat - Former Delegate to the US House of Representatives for Guam.
- Lou Leon Guerrero - The current (2025) Governor of Guam.
See alsoSee also
- United States
- United States family history records
- US National Archives
- Spanish-American War
- How To Research Family History In United States Unincorporated Territories
- Hawaii Historical Migration Routes
- Hawaiian surnames
- Japanese surnames
- Chinese surnames
- Samoan surnames
- Maori surnames
- Kanak surnames
- Australasian and Pacific Islander surnames
- Malay surnames
- Indian surnames
- American surnames
- Viking surnames
- Scottish surnames
- Indigenous Australian surnames
- Tongan surnames
- Canadian surnames
- New Zealand surnames
- American surnames
- Irish surnames
- French surnames
- Dutch surnames
Explore more about Chamorro surnamesExplore more about Chamorro surnames
You can research family history, including possible Chamorro connections through MyHeritage. Users can search for specific individuals or explore the origins and meaning of Chamorro surnames. Apart from records specifically relating to Chamorros, MyHeritage provides access to a huge global collection of almost 36 billion historical records across multiple databases as many additional resources such as feature articles and guides.
For more specific research on Chamorro surnames you can try other specialty online sources, such as:
References
- ↑ Wikimedia Foundation. (2025, June 25). Mariana Islands. Wikipedia.
- ↑ Encyclopædia Britannica, inc. (2025, June 21). Chamorro. Encyclopædia Britannica.
- ↑ Pereda, N. (2025a, April 28). Chamoru/Chamorro Roots Genealogy Project. Guampedia.
- ↑ Roles of family members. Guampedia. (n.d.).
- ↑ Pereda, N. (2025, June 21). Origin of chamoru/chamorro as an ethnic identifier. Guampedia.
- ↑ Punzalan, W. by: B. (n.d.). Bernard Punzalan. CHAMORRO ROOTS: The Chamorro Roots Genealogy Project.