Korean Name Romanization Must Match Passport — Case

Which English spelling do you use when translating a Korean name from a Hangul document?

TL;DRA Korean Basic Certificate (기본증명서) and Family Relations Certificate (가족관계증명서) listed the holder's name only in Hangul (이강욱) and Hanja (李康旭). Korean names admit multiple valid romanizations — Kang Wook, Kang-Ouk, Gang-uk — and only the holder's passport spelling will match USCIS records. We confirmed the passport spelling (Kang Wook) before delivery, preserved the Hanja in parentheses, and issued the certified translation for the client's USCIS filing.

Case Specifications

Document: Basic Certificate + Family Relations Certificate (Korean civil registry)
Foreign Name: 기본증명서 (상세) / 가족관계증명서 (상세)
Country: Republic of Korea
Languages: Korean → English
Submitted To: USCIS

What We Received

A client submitted a paired Korean civil-registry packet — a Basic Certificate (기본증명서, 상세) and a Family Relations Certificate (가족관계증명서, 상세) — both issued through the Consulate General of the Republic of Korea in New York for an applicant born in 1995. South Korea replaced the old hojuk (호적) family register with this two-document system in 2008; the Basic Certificate covers an individual's personal status events, and the Family Relations Certificate lists immediate family — together they perform the role a single [certified birth certificate translation](/documents/birth-certificate) plays in many other countries.

The document body is entirely Korean. The applicant's name appears only in Hangul (이강욱) followed by Hanja in parentheses (李康旭). His parents' names follow the same pattern. Nowhere on the document is a Latin-script spelling of any name. The certified translation was needed for a [USCIS filing](/immigration/uscis) — see also our [Korean translation services](/languages/korean) page.

Korean Basic Certificate (기본증명서) translation example — top section showing the Hangul/Hanja name field structure, registration base address, and bon-gwan (本) clan-seat column with personal details redacted — Top section of a Korean Basic Certificate (기본증명서, 상세) issued through the Consulate General of the Republic of Korea in New York — registration base address, holder's Hangul + Hanja name, date of birth, and Resident Registration Number redacted. The bon-gwan (本) "全州" (Jeonju) clan-seat marker remains visible in the rightmost column.

Why This Required Special Handling

Korean has at least two competing official romanization systems. Revised Romanization of Korean (RR), adopted by the South Korean government in 2000, would render 이강욱 as "I Gang-uk." McCune-Reischauer (MR), still common in academic publishing, renders the same name "Yi Kanguk." Neither is what most Koreans actually use. In practice, the spelling on a holder's passport is a personal choice made at issuance and rarely matches either standard system: "Lee Kang Wook," "Lee Kang-Ouk," "Lee Kang-uk," and "Yi Gangwook" are all in active use on real Korean passports for the same Hangul name.

USCIS adjudicators do not check a translated name against a romanization standard. They match it against the applicant's other identity documents — principally the passport. If the certified translation says "I Gang-uk" but the passport says "Lee Kang Wook," that reads as a name discrepancy on its face, and the cleanest immigration packet still attracts a Request for Evidence (the broader pattern is covered in our [name mismatch guide](/guides/name-mismatch-guide)).

A translator who romanizes by the book — applying RR consistently — produces a technically correct rendering that does not match the holder's actual identity documents. The professional standard is the opposite: use the passport spelling, regardless of which system (or none) it follows. The translator cannot infer the passport spelling from the Hangul alone, because the Hangul-to-Roman mapping is genuinely many-to-one.

The Hanja layer adds a separate consideration. Korean names traditionally pair a Hangul reading with a fixed set of Hanja characters that carry the name's meaning. 李康旭 is the family-line identifier; the Hangul (이강욱) and any romanization are just labels for the reader. A translation that drops the Hanja loses the unambiguous form an adjudicator can use to cross-reference the applicant against any other Korean civil-status documents.

How We Handled It

Before drafting, we asked the client for the Roman spelling on his passport. He confirmed "Lee Kang Wook" — first name "Kang Wook," last name "Lee." We applied the same approach to his parents' names — using the spellings the holder confirmed where he had them, and falling back to Revised Romanization only where no holder-supplied spelling was available. Any fallback was disclosed in the Translator's Note rather than presented as if it were the holder's authoritative spelling.

Each romanized name in the translation is followed by the original Hanja in parentheses — "LEE Kang-Wook (李康旭)," "LEE Gi-Beom (李起範)," "KIM Mi-Dong (金美東)." This gives the USCIS adjudicator a Latin-script form for cross-reference against the passport and an unambiguous Hanja form for cross-reference against any other Korean civil-status records the applicant may file in the same packet.

For 본 (bon-gwan) — the ancestral clan seat associated with each Korean surname — we used the place-name romanization with the Hanja in parentheses ("Jeonju (全州)," "Andong (安東)") and explained the term in the Translator's Note. Bon-gwan is genealogical metadata, not part of the legal name, and conflating the two is a common error that produces translations where the clan seat looks like a middle name.

Korean Resident Registration Numbers (주민등록번호) were reproduced verbatim. Dates were converted from "YYYY년 MM월 DD일" to the unambiguous English "Month DD, YYYY" form. Every stamp and seal — the revenue-stamp section, the Court Administration Office registrar's seal, and the Consulate General's seal — was rendered as a bracketed English transcription rather than reproduced as untranslated Korean. The two certificates were assembled as a 2-page paired set with their separate issue numbers preserved (1173-2602-6980-1549 and 1173-2502-6980-1548).

The Translator's Note read in part:

Expert Note

"Personal names are rendered in Roman letters following the spelling on the holder's passport (and on parents' identification where supplied), with the original Hanja preserved in parentheses as in the source. "본 (本)" refers to the bon-gwan, the ancestral clan seat associated with a Korean surname; the Hanja characters are retained in parentheses. Korean Resident Registration Numbers (주민등록번호) are reproduced verbatim. All dates in the source are written in the Korean format "YYYY년 MM월 DD일" and have been rendered in the unambiguous English form "Month DD, YYYY." Page 1 is a Basic Certificate (기본증명서); Page 2 is a Family Relations Certificate (가족관계증명서) — each issued as a separate certificate with its own issue number, submitted together as a 2-page set."

Wei LinTechnical & Business Translation Lead

This note does three things. It tells the USCIS adjudicator that the Latin spellings are sourced from the holder's passport rather than from a romanization standard the translator chose. It documents the Hanja-in-parentheses convention so any reviewer can see the unambiguous identifier alongside the romanized form. And it pre-empts the most common adjudicator confusion about Korean civil-registry packets — that the Basic Certificate and Family Relations Certificate are two separate documents with their own issue numbers, not a single multi-page certificate.

The Outcome

The certified translation — both certificates as a paired 2-page set, each with its own issue number — was delivered to the client for the USCIS filing. The romanization of every name on the translation matches the holder's passport spelling, and the Hanja-in-parentheses convention provides the cross-reference adjudicators need when comparing the translation against other Korean documents the applicant submits.

We have used the same passport-first romanization approach across our Korean civil-registry translations consistently. None of the cases delivered with this convention has triggered a name-related Request for Evidence.

What This Means for You

A certified translation of a Korean civil-registry document should romanize the holder's name using the spelling on the holder's passport, not the spelling produced by any official romanization standard. Supply the passport spelling at order placement — the translator cannot infer it from the Hangul alone, and Hangul-to-Roman is genuinely many-to-one. Always preserve the original Hanja in parentheses as the unambiguous identifier across other Korean records.