San, kun, chan, sama and sensei are the five honorific suffixes you'll hear attached to Japanese names, and each one signals something different: respect, distance, affection, or rank. San is the safe default, fine for almost anyone. Sama raises the person above you, reserved for customers, deities, and formal writing. Kun and chan skew younger and more familiar: kun mostly for boys and junior men, chan for children, close friends, and anything the speaker finds endearing. Sensei stands apart from all four. It marks a teacher, doctor, or master of a craft, not a spot in a seniority line. Attach the wrong one to the wrong name and native speakers notice immediately, even if they're too polite to say so.
The five at a glance
| Honorific | Attaches to | Signals | Example |
|---|---|---|---|
| さん (san) | Almost anyone | Neutral respect, the default | Tanaka san |
| 様 (sama) | Customers, deities, formal letters | Elevated respect, real distance | okyakusama, "dear customer" |
| 君 (kun) | Boys, junior men, some junior colleagues | Familiarity with a slight downward tilt | Yamada kun |
| ちゃん (chan) | Children, close friends, pets, mascots | Affection, closeness | Yuki chan |
| 先生 (sensei) | Teachers, doctors, authors, instructors | A role, not a rank | Suzuki sensei |
San: the one you can't get wrong
San is the honorific you reach for when you're not sure what else applies, and it works. Colleagues use it with each other. Shopkeepers use it with customers. News anchors use it for public figures. It carries roughly the weight of "Mr." or "Ms." in English, minus the gendered assumption baked into those words: san attaches to a name regardless of the person's gender or age. The one hard rule is you never attach san to your own name. Introducing yourself as "Tanaka san" reads as boastful, the equivalent of calling yourself "Mister Tanaka" out loud.
Sama: raising someone above you
Sama does everything san does, then adds real distance and elevation on top. A store addresses its customers as okyakusama, "honored customer," in signage and announcements you'll hear on every trip to Japan. Religious texts and shrines use it for gods and spirits: kamisama. Formal letters address the recipient as sama regardless of who they are, since written correspondence defaults to the most respectful register available. Use sama on a friend and it sounds like sarcasm or a joke about their ego. Use it on a customer, a client, or a deity, and it's simply correct.
Kun and chan: familiarity, not childishness
Kun attaches mostly to boys and young men: classmates, junior employees, characters in a school setting. A manager might call a new male hire "Sato kun" for the first year or two, until seniority evens out. It carries a small downward tilt, so a junior calling a senior "kun" would land badly, but the reverse is completely normal.
Chan is the affectionate one. Parents use it for children of either gender. Close friends use it for each other, especially young women, and it sticks around into adulthood between people who met as kids. Companies attach chan to mascots and product names to make them sound cute and approachable, which is why so many mascot characters end in chan regardless of what they actually are. None of this makes chan childish by default. It's about closeness, not age. Calling a stranger or a superior "chan" the first time you meet them is presumptuous, not cute.
Sensei: a title, not a step in a line
Sensei looks related to senpai (both start with the character 先), and beginners sometimes mix the two up. They aren't interchangeable. Senpai marks a position in a seniority order, decided purely by who arrived first. Sensei marks a role: a teacher, a doctor, a published author, a martial arts instructor, anyone whose skill puts them in a position to guide you. A brand new teacher, twenty two years old and a week into the job, is still sensei to their students on day one. Age and tenure don't factor into it at all.
Dropping the honorifics entirely
Calling someone by their bare name, no san, no chan, nothing, is called yobisute, and it's a deliberate signal, not an oversight. Between close friends, family, and couples, it marks real intimacy: you've earned the right to skip the formality. From a stranger or a new acquaintance, the same bare name lands as blunt at best, rude at worst. The honorific isn't decoration. Removing it on purpose says something, and removing it by accident says something too, just not what you meant.
Where this trips up manga and anime translations
Fan translations and official localizations handle honorifics very differently, and that inconsistency is exactly where a lot of confusion comes from. Some keep every suffix intact ("Sato kun," "Yuki chan") so English readers see the same social cues Japanese readers see. Others drop honorifics entirely and rely on tone of voice to carry the same information, which works less often than it should. Read enough raw manga and you start noticing who calls whom what, and the honorific alone tells you who's senior, who's close, and who just met. A camera translator that keeps names and honorifics visible while replacing only the surrounding Japanese lets you track that structure yourself, on the actual page, instead of hoping the translator made the same call you would have.
Common mistakes to avoid
- Attaching san, sama, or sensei to your own name. Always drop the honorific for yourself.
- Using chan on someone you just met. Save it for people you're actually close to.
- Assuming kun is strictly for males. It usually is, but some workplaces use it for junior employees of any gender.
- Calling a teacher senpai instead of sensei. They're different categories entirely, role versus rank.
- Treating yobisute as always rude. Between close friends it's the opposite, a sign of trust.
The pattern once you see it
Every honorific answers the same two questions: how close are you to this person, and how far above or below you do they sit. San sits at neutral on both axes. Sama pushes distance and respect up. Kun and chan pull closeness in, one with a small downward tilt, one with none at all. Sensei ignores the whole ladder and marks a role instead. Once that framework clicks, a page of Japanese dialogue stops being a wall of unfamiliar suffixes and starts reading as a map of exactly who everyone is to each other.