성함: The Honorific Word for 이름 (Name)

The plain word for "name" is 이름. But the moment the name belongs to someone you must be respectful to — a customer, a teacher, an elder, a stranger at an official counter — you upgrade it to 성함. The word is built from Sino-Korean 성 (姓, "surname") + 함 (銜, an old honorific word for a person's name or title), so it literally means something like "esteemed name." It sits alongside 댁 (home) and 연세 (age) as one of the handful of honorific nouns every learner needs early.

But 성함 teaches something bigger than one vocabulary swap. In Korean, politeness is not just a matter of choosing a more respectful word — the whole question frame changes. You do not ask a superior's name the way you ask a child's. So this page is really about two things at once: the noun 성함, and the frame it lives inside.

The frame shift: 뭐예요? → 어떻게 되세요?

To a friend or a child, you ask for a name bluntly and directly:

That question is fine among equals. But aimed at a customer or an elder it feels abrupt — it demands the name as flatly as asking "what is that thing?" To a superior, Korean reframes the question entirely, from 뭐예요? ("what is it?") to 어떻게 되세요? ("how does it come to be?"). This indirect frame, which carries the subject honorific -시- baked into 되세요, is the standard, expected way to ask a respected person's name:

Two things are happening together. The noun climbed from 이름 to 성함, and the verb frame climbed from 뭐예요 to 어떻게 되세요. Both moves are part of one gesture of deference, and pulling only one lever produces the awkward half-polite forms you will see in the mistakes below.

성함 in real service and formal speech

You will hear 성함 constantly at the front lines of formal life — reception desks, clinics, call centers, banks, any counter where a stranger of customer status stands in front of you.

성함 also appears when you refer to a respected third party's name, not just when asking:

That last example is a common polite compliment on first meeting — "your (esteemed) name precedes you" — and it only works with 성함, because you are honoring the other person's name, not your own.

Your own name is always 이름

The hard boundary, exactly as with 댁 and 연세: you never apply 성함 to yourself. Honorifics point outward at the other person, so when you give your own name — even to a superior, even in the most formal setting — you use the plain 이름 (usually humbled with the modest first person 저, covered on the humble 저 / 저희 page).

Answering "성함이 어떻게 되세요?" with 제 성함은… is a giveaway non-native error: it politely asks about your own name, which is a small logical contradiction. The polite move is asymmetric — their name is 성함, yours is 이름.

English has no lever for this

English speakers have no habit to transfer here, which is exactly why the error is so persistent. In English, "your name" and "my name" share the identical noun; politeness rides entirely on framing — "May I have your name?" versus "What's your name?" Korean does that framing too (어떻게 되세요? vs 뭐예요?) and changes the noun itself (성함 vs 이름). You have to move both levers at once. Think of it as English's politeness distributed across two moving parts instead of one.

Common Mistakes

1. Asking a superior's name with the blunt 이름이 뭐예요? To a customer, elder, or in any formal setting, this is too flat — climb to 성함 and the 어떻게 되세요 frame.

2. Using 성함 but keeping the blunt 뭐예요 frame. Half-polite: the noun climbed but the frame did not, so the two clash.

3. Dropping the -시- from the frame. 어떻게 돼요? loses the honorific; a superior's name calls for 되세요.

4. Applying 성함 to your own name. Yours is always 이름.

Key Takeaways

• 이름 → 성함 whenever the name belongs to a respected person; 성함 = 성(surname) + 함(esteemed name).
• Politeness reframes the whole question, not just the noun: ask 성함이 어떻게 되세요?, not 뭐예요?
• 어떻게 되세요? is a reusable honorific asking-frame — also for age (연세), family, and other personal facts.
• Honorifics point outward: their name is 성함, your own name is always 이름.