How Do Korean Names Work? Structure, Order and Rules Explained

A Korean name is short, structured and full of information once you know how to read it. This guide covers the order of the parts, how given names are built, what the hyphen means, why there is no middle name, and how Koreans actually address each other.

The structure: surname + given name

Almost every Korean name has exactly three syllables: a one-syllable family name followed by a two-syllable given name. Take the figure skater 김연아, Kim Yu-na. Kim (김) is the surname; Yu-na (연아) is the given name. The same pattern holds for Park Ji-sung, Moon Jae-in, Lee Jung-jae and Jung Ho-yeon. The surname always comes first in Korean, and there is nothing in between.

Exceptions exist but are uncommon. About 13 surnames have two syllables (Namgung, Hwangbo, Jegal, Sagong, Sunwoo), and a small number of given names are one syllable (Kim Gu, Yi Sun-sin’s contemporary Won Gyun) or, very rarely, three. Pure-Korean given names without Hanja, such as Haneul (“sky”) or Areum (“beautiful”), became fashionable from the 1980s and can also break the two-syllable rule.

Why the family name comes first

Korean, like Chinese, Japanese and Vietnamese, places the family before the individual — the group you belong to is stated before your personal name. When Koreans write their names in English many keep the Korean order (Kim Yu-na), while others flip it to match Western convention (Yuna Kim). Both refer to the same person, and news organisations are inconsistent, which is why you will see BTS’s leader written as both RM Kim Nam-joon and Nam-joon Kim. The one reliable rule: if the name is three syllables and the first is one of the common surnames, the surname is first.

How given names are built

Traditional given names are made of two Hanja, each chosen for its meaning and sound. Parents choose from a government-approved list of about 8,000 characters. A name like Ji-sung might be 智星 (“wisdom” + “star”); the same sounds could be written with different characters to give a different meaning, which is why Koreans with identical-sounding names can have completely different name cards. Many families consult a naming specialist who balances the characters’ strokes and elements according to the traditional theory of the five elements.

The 1990s brought a shift toward pure-Korean names with no Hanja at all — Ha-neul, Seul-gi, Na-rae, Bit-na. Today most names still use Hanja, but the mix is broader than a generation ago, and some names (Ji-woo, Seo-yeon, Min-jun) are so popular that a primary-school class may contain three or four of them.

Generation names (dollimja)

One of the two given-name syllables is often a generation name, shared by all siblings and cousins of the same generation within a clan. If a family’s generation syllable is “Sung”, the brothers might be Ji-sung, Min-sung and Tae-sung. The clan’s genealogy book (jokpo) fixes the sequence of generation characters for centuries in advance, following the cycle of the five elements — wood, fire, earth, metal, water — so that a member’s name reveals which generation they belong to. The practice is fading among younger families but still shapes millions of names.

What the hyphen means

The hyphen in Kim Yu-na or Moon Jae-in is a romanization convention, not part of the Korean name. It shows where the two syllables of the given name divide and prevents misreadings (Yu-na rather than Yun-a). South Korea’s official Revised Romanization recommends writing the given name as one word (Yuna) with a hyphen permitted; McCune–Reischauer, used in most academic writing and in North Korea, hyphenates. Individual preference wins: the singer IU’s legal name is written Lee Ji-eun on her passport, while some public figures prefer no hyphen at all. North Korea writes given names as two separate capitalised words — Kim Jong Un.

Do Koreans have middle names?

No. A Korean name has a family name and a given name, nothing else. The confusion arises because a two-syllable given name written without a hyphen looks like a first name plus a middle name — “Jae In” — and Western forms then file “In” as a middle name. When a Korean fills in a form that requires a middle name, the correct answer is to leave it blank or to put the whole given name in the first-name field. The generation syllable is sometimes described as a “middle name” in explanations for Westerners, but it is not a separate name and is never used on its own.

How Koreans address each other

Because surnames are so widely shared, Koreans almost never address someone by surname alone — “Mr Kim” would apply to a fifth of the room. Instead they use the full name plus a title (Kim Yu-na ssi, roughly “Ms Kim Yu-na”), a job title (bujang-nim, department head), or a kinship term (eonni, older sister, between women who are not related). Among friends the given name is used, often with a suffix: Yu-na-ya. Using a bare given name toward someone older or senior is rude; using a bare surname is stranger still. In business settings the surname plus title is the safe form: Kim daepyo-nim (CEO Kim).

Names after marriage and for children

Korean women keep their own surname for life; there is no tradition of taking the husband’s name. Children take the father’s surname and bon-gwan by default. Since the 2008 family-law reform parents can agree at the time of marriage to give children the mother’s surname, and a family court can approve a change later, but the father’s name remains the overwhelming norm.

Romanization: why Kim, Gim and Ghim are the same name

Korean has been romanized under at least three systems. McCune–Reischauer (1937) gives Pak, Chŏng, Yi; the Revised Romanization of 2000 gives Bak, Jeong, I; and passport practice, which lets each family choose, has produced Park, Jung and Lee. Because the government has never forced families to switch, all of these coexist. Every page on this site lists each surname’s Revised, McCune–Reischauer and everyday spellings, and the surname checker accepts any of them.

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