Korean Choi represents 최, usually written with the hanja 崔, meaning “high” or “lofty.” This is the meaning of the written character, not proof that a family's founder lived on a mountain or held an elevated rank. Choi and Choe can represent the same Korean surname, but identifying a family requires its ancestral-seat affiliation and connected records. The Dictionary of American Family Names identifies the Korean name under Choe.
Meaning and the Forms Choi, Choe, and Ch’oe
최 is the Hangul spelling; 崔 is its familiar hanja, or Chinese-character, form. The surname dictionary glosses 崔 as high or precipitous. The Academy of Korean Studies likewise gives the character's Korean reading as choe and associates its meaning with something standing tall, including a mountain, in its entry for Choe Chi-won. That lexical meaning alone does not explain why a particular lineage adopted the character.
Three forms are especially useful in searches:
- Choi is an established personal-name spelling.
- Choe follows South Korea's Revised Romanization rules for 최.
- Ch’oe, also typed Ch'oe, occurs in scholarly and reference writing, including the surname dictionary.
In a response specifically about 최, the National Institute of Korean Language confirms Choe as the rule-based form while allowing people to retain an established spelling. A difference between Choi and Choe therefore need not indicate a name change in Korean. Preserve the spelling actually used in each document and search the alternatives separately.
Historical Use and Hereditary Surnames
The surname is securely associated with the late Silla scholar Choe Chi-won (최치원, 崔致遠), born in 857. The Academy of Korean Studies identifies his father as Choe Gyeon-il (崔肩逸) and discusses their family among Silla's elite. This father-and-son evidence is more informative about inherited use than an isolated occurrence of the character. It does not establish the earliest Choi family or make the scholar an ancestor of every modern bearer. See the biography's family and upbringing section.
The wider chronology also matters. Historian Lee Su-geon's account of bon-gwan places the consolidation of Korea's surname-and-ancestral-seat system in late Silla and early Goryeo. Names spread through social groups over time; elite use is not evidence that the entire population already followed the same practice. The account discusses both self-assumed and state-bestowed names and ancestral seats. These are features of the broader system, not an adoption history that can be assigned to an undocumented Choi ancestor. Read Lee's historical account.
Bon-gwan: Which Choi Family?
A bon-gwan (본관, 本貫) associates a surname group with an ancestral place or a founder's residence. It is inherited lineage information, not necessarily a person's birthplace. Lee's account explains how migration and official service separated ancestral seats from actual residence. See the definition and historical discussion.
For example, the Academy identifies Choe Chi-won with Gyeongju (경주, 慶州). It identifies the Goryeo military ruler Choe Chung-heon (1149–1219) with Ubong (우봉, 牛峯). These illustrate different surname-and-seat identities within 崔, not two spellings of one ancestral place. Compare Choe Chung-heon's family details.
For research, record “Gyeongju Choi” or “Ubong Choi” when a source supplies that affiliation, and record the source alongside it. Even a matching surname and bon-gwan does not demonstrate the precise parent-child chain connecting two individuals. The same distinction is useful when comparing Korean Kim and Park families; those are separate surnames, not variants of Choi. Our East Asian origin guide introduces the regional naming context.
How Common Is Choi?
The Korean Statistical Information Service's summary of the 2015 South Korean census lists 최 fourth among surnames, at approximately 2.33 million people, or 4.7% of the South Korean nationals counted. The reference date is 1 November 2015. Its separate surname-and-bon-gwan chart gives approximately 950,000 for Gyeongju Choi. These are rounded figures reproduced from the census release. See the two KOSIS charts and their population notes.
The first figure measures a surname category; the second measures one surname-and-ancestral-seat category. Neither is a current worldwide count, a count of Latin spellings on passports, or proof of genealogical relationships among those counted.
When Choi Is a Chinese Surname
The Latin spelling is not exclusive to Korean. The 2022 Dictionary of American Family Names also records Choi as a Cantonese form of several Chinese surnames, including 蔡, 徐, and 崔. Consequently, assigning the Korean meaning to every Choi in an English-language index would conflate different names. See the dictionary's separate Chinese and Korean explanations.
Different original characters are a reason to investigate separate origins. Even matching 崔 in a Chinese and a Korean document does not by itself establish migration or descent between the families. Look for a record connecting the people, languages, and places. Our guide to transliteration and surnames explains why a Roman spelling can conceal distinctions preserved in the original script.
Researching Your Choi Line
Start with a known relative and work backward through linked records. For this surname, the most useful first questions concern the original writing and the family's bon-gwan:
- Capture the full original name. Copy or photograph Hangul and hanja where available. Search Choi, Choe, and Ch'oe, but compare birth dates, spouses, parents, and addresses before merging results.
- Check name order. Korean convention places the family name first. The official romanization rules, section 3(4), also allow a hyphen within a given name. Search both name orders in overseas indexes and keep given-name spacing variants in your notes.
- Ask for the bon-gwan and any family genealogy. A jokbo (족보, 族譜) is a compiled genealogy. Obtain its title, edition date, volume, and page, plus the branch designation if supplied. Begin by locating a relative you can identify independently; do not start with a famous medieval Choe and work toward yourself.
- Read the genealogy's structure before interpreting omissions. Son Byeong-gyu's history of jokbo explains that earlier compilations could follow daughters and their descendants, while later ones increasingly concentrated on paternal male lines. A missing person must be evaluated against that edition's scope.
- Test each generation against other evidence. Compare genealogy entries with available household or family records, gravestone inscriptions, and migration documents. Note when a compilation reports an event centuries before its own publication. If the connection between two generations remains unsupported, leave it unresolved.
Use the surname evidence checklist to separate a source's actual statement from your proposed connection. A bon-gwan can direct the search toward a relevant genealogy; only evidence linking named people can build the family line.
References
- Patrick Hanks, ed. Dictionary of American Family Names. Oxford University Press, 2003; FamilySearch reproduction marked © 2003, 2006, “Choe” entry. Used for the Korean character, meaning, and written forms.
- Patrick Hanks, Simon Lenarčič, and Peter McClure, eds. Dictionary of American Family Names, 2nd edition. Oxford University Press, 2022, “Choi” entry, reproduced by Ancestry. Used for the distinct Chinese and Korean uses of the spelling.
- National Institute of Korean Language. “한글 이름 영문 표기 관련” (Romanizing a Korean personal name), Online 가나다, answered 8 January 2025; and *Romanization of Korean*, undated web edition, sections 2 and 3(4), 3(7).
- Jang Il-gyu. “최치원 (Choe Chi-won)”, Encyclopedia of Korean Culture, Academy of Korean Studies, written 2021, revised 26 August 2026, character information and family and upbringing section.
- Lee Su-geon. “본관 (Bon-gwan)”, Encyclopedia of Korean Culture, Academy of Korean Studies, written 1995, revised 7 February 2023.
- Academy of Korean Studies. “최충헌 (Choe Chung-heon)”, Encyclopedia of Korean Culture, written 2022, revised 7 October 2023, biographical and family details.
- Korean Statistical Information Service. “우리나라의 성씨는 몇 개나 될까?” (How many surnames are there in Korea?), episode 103, undated explanatory page, charts of the ten leading surnames and surname-and-bon-gwan groups from the 2015 Population and Housing Census, reference date 1 November 2015.
- Son Byeong-gyu. “족보 (Jokbo)”, Encyclopedia of Korean Culture, Academy of Korean Studies, written 2022, revised 31 January 2024, sections on early and later Joseon genealogies.