Ssi vs Nim: How Do You Address Coworkers in Korean?
Someone on your team calls you 민수 씨, so on Monday you greet your lead the same way. The room goes just a little quiet.
Or the opposite: you learned “님 = polite” in class, so you attach it to everyone, until a peer laughs and tells you it sounds a bit stiff.
This isn’t a full 존댓말 lesson. Today we’ll look at one small choice — how you attach something to a person’s name — and why it quietly ranks the room.
직함+님 vs 이름+씨
직함+님 (job title + 님) is your safe default for anyone above you and for any client: 팀장님, 과장님, 부장님, 대표님. You can add a surname in front — 김 과장님, 박 팀장님 — and it still works. Bosses, clients, external partners, people you mainly know by their role: 직함+님 is never the wrong call.
이름+씨 (given name + 씨) is peer politeness. It’s fine when your workplace already uses it among equals or toward juniors — if a same-rank colleague calls you 민수 씨, it’s usually okay to call them the same way back.
The trap is going upward. Calling a manager by name+씨 because a peer did it to you often lands as too familiar, or flat-out rude. You’re not being friendly; you’re addressing them the way juniors get addressed.
This applies to writing too. An email or chat opener still needs the right 호칭 (form of address). If 민수 is your lead, 안녕하세요, 김 과장님 is much safer than 안녕하세요, 민수 씨. It’s easy to keep every 요 and 습니다 perfect and still get the 씨/님 wrong — fix the suffix first. Dropping into 반말 is a separate decision for another day.
How it sounds in real life
- 김 과장님, 회의 자료 보내드렸습니다. — Manager Kim, I’ve sent you the meeting materials. (upward — title + 님)
- 안녕하세요, 박 팀장님. — Hello, Team Lead Park. (safe email or chat opener)
- 대표님 — CEO (title + 님, no name needed)
- 민수 씨, 점심 같이 하실래요? — Minsu, want to grab lunch together? (a peer who already uses name+씨 with you)
- 안녕하세요, 민수 씨. — risky if 민수 is your lead or a new client
Try it at work today
In your next meeting or Kakao Work thread, just listen. Notice how two or three Korean colleagues refer to your lead, then copy that exact form in your next message. Until a new client invites you to do otherwise, stick with 직함+님.
Mirroring the room in your first weeks is the quickest way to get this right — and once 팀장님 comes out without thinking, it’s one less thing to worry about.
Related reads
- How Do You Exchange Business Cards in Korea?
- What Does "아무거나요" Really Mean at a Korean Team Lunch?
- How to Give a 1-Minute 자기소개 in a Korean Interview
If you want to practice saying titles out loud in a short self-intro:
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