Happy Birthday in Japanese ๐ A Complete Guide
How To Say Happy Birthday in Japanese (& Much More)
Today we move into the wonderful world of birthdays as we teach you how to say happy birthday in Japanese, and a lot more!

First of all though, fun fact alert.
DID YOU KNOW | Birthdays have been celebrated in Japan only since around 1950!? Previously, all Japanese birthdays were celebrated over the new year!
Bet you didn’t know that one, right?!
Anyway, there’s plenty of useful phrases we can learn when talking about saying happy birthday in Japanese that can also be used in other situations and it’s those very words we will be teaching you today.
Happy Birthday in Japanese | Key Words To Know
Happy Birthday in Japanese | Wishing a Superior Happy Birthday
Happy Birthday in Japanese | Wishing a Friend Happy Birthday
Happy Birthday in Japanese | Asking About a Birthday
Happy Birthday in Japanese | Other Useful Birthday Phrases
Happy Birthday in Japanese | Asking About Age
Happy Birthday in Japanese | Age Related Culture in Japan
Happy Birthday in Japanese | FAQ’s
Happy Birthday in Japanese | Key Words
First, let us walk you through the meaning of Japanese words that weโre going to use today.
- ่ช็ (ใใใใใ – tanjyou) | A noun meaning Birth, Origin or creation in Japanese.
- ๆฅ (ใณ – bi) | A suffix that is used to add the meaning โdayโ to its preceding words.
NOTE | The ๆฅ Kanji character can also be found in words like โkinouโ (yesterday) and โkyouโ (today).
- ใใใงใจใ (omedetou) | Sending someone well wishes like for saying โCongratulationsโ or โBest wishesโ.
- ใใใใพใ (gozaimasu) | A polite Japanese expression to express existence of things. Sometimes ใใใใพใ is put after an interjection like โomedetouโ to make it sound polite.
In Japanese Culture, different forms of the same phrase are used to show respect depending on the position of the receiver.
FOR EXAMPLE | You can say thank you to someone by using ใใใใจใ but to level this up and make it politer (like for example talking to your boss or elders) you can add ใใใใพใ to make ใใใใจใใใใใพใ.
One thing to be very aware of in Japanese (although very similar in Korean and Chinese culture too) is to be aware who you are speaking to. Generally there isn’t a one size fits all approach.
Talking to friends, your colleagues or family can lead to very different ways of expressing things.
Anyway – these are the keywords you need to know, so now lets get into the good stuff and discover how to wish your friends, family and others a happy birthday in Japanese!
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Happy Birthday in Japanese | Wishing a Superior Happy Birthday
Combining the things mentioned above, to wish a superior or a colleague on their birthday, the formal version used is…

ใ่ช็ๆฅใใใงใจใใใใใพใใใใใใใใใณใใใงใจใใใใใพใ
o tanjyoubi omedetou gozaimasu
Congratulations on your birthday.
A literal translation of this phrase would be “congratulations on your birthday”.
Here, โoโ is a prefix used to make the following words more polite.
You’ll notice this used in other sentences.
FOR EXAMPLE | Going back to basics, the polite way to ask “What is your name” would be ใ ๅๅ ใฏ ไฝ ใฆใใ . Notice the ใ used at the start to make the sentence more polite.
TOP TIP | Never use โoโ prefix while talking about yourself as it is perceived rude in Japanese Culture.
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Happy Birthday in Japanese | Wishing a Friend Happy Birthday
Itโs your friends birthday and you want to impress them by using your Japanese language skills!
You wonโt use the same phrase you would use to wish your superior while wishing your friends, right?
Correct!
To make the phrase more casual, you need to omit the words โoโ and โgozaimasuโ. Simply say…
่ช็ๆฅใใใงใจใ
ใใใใใใณใใใงใจใ
tanjyoubi omedetou
Happy birthday

Due to effect of western culture, young people may speak even more casually with each other, saying, ใใใใผใใผในใใผ (happi-basude) to each other.
This greeting basically sounds like “happy birthday” in English.
TIP | Notice this is written in Katakana, which is the Japanese alphabet used for loanwords and (foreign) names.
Many Japanese people will celebrate with friends on a different day, as their birthday might be a special day spent with their significant other.
Happy Birthday in Japanese | Asking About a Birthday
What about if we want to flip it around and ask questions about someones birthday in Japanese instead?
To ask someone โWhen is your birthday?โ we can say…
ใใชใใฎใ่ช็ๆฅใฏใใคใงใใ
ใใชใใฎใใใใใใใณใฏใใคใงใใ
anata no tanjyoubi wa itsu desuka
When is your birthday?
If you know the other personsโ name, you should use…
~ใใใฎ่ช็ๆฅใฏใใคใงใใ
ใใใฎใใใใใใณใฏใใคใงใใ
~san no tanjyoubi wa itsu desu ka
When is your birthday?
In Japanese, “~ san (๏ฝใใ)” is a title of respect added to a name and is very commonly used in Japan.
It can be used with both male and female names, and with either surnames or given names.
FOR EXAMPLE | Johnใใใฎ่ช็ๆฅใฏใใคใงใใ.
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Happy Birthday in Japanese | Other Useful Birthday Phrases
Here are some phrases that you can consider using when talking about birthdays in Japanese.
| PHRASE | ROMAJI | MEANING |
|---|---|---|
|
ๆฅฝใใใงใใ ใใ
ใใฎใใใงใใ ใใ | tanoshinde kudasai | Have Fun! |
|
็ด ๆตใชไธๆฅใ
ใใฆใใชใใกใซใกใ | sutekina ichinichi o | Have a Great Day! |
|
็ด ๆดใใใ๏ผๅนดใซใชใใพใใใใซ
ใใฐใใใใใกใญใใซใชใใพใใใใซ | subarashii ichinen ni narimasu you ni | I Hope it’s a Wonderful Year For You |
|
ใใชใใฎ้กใใๅ
จใฆๅถใใพใใใใซ
ใใชใใฎใญใใใใในใฆใใชใใพใใใใซ | anata no negai ga subete kanaimasu you ni | May All Your Wishes Come True |
|
ใใใใใฎไบบ็ใๅนธใใงๆบขใใพใใใใซ
ใใใใใฎใใใใใใใใใใงใใตใใพใใใใซ | kore kara no jinsei ga shiawasede afuremasu youni | May Your Future Be Filled With Joy |
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Happy Birthday in Japanese | Asking About Age
Hopefully, you wonโt need to ask this question (especially at a birthday party). Asking this question might offend the other person so be careful!
However, sometimes it might pop up so it’s good for us to learn these whilst you are here!
To ask someone about their age in a formal way, you can use…
ใใใใคใงใใ?
o ikutsu desu ka?
How old are you?

For a more casual situation you can say.
ไฝๆญณใงใใ ?
nansai desuka?
How old are you?
If youโre on the receiving end of this question, respond using the Japanese numbering system and add ๏ฝๆญณใงใ (~sai-desu) to depict how many years old you are.
~ๆญณ (~sai) is a counter used to express age in Japanese.
FOR EXAMPLE | If you are 30 you can respond with ็งใฏ30ๆญณใงใ (watashi wa san-ju sai desu)
If the circumstances require you to ask their age, you might consider using the following phrases afterwards which roughly translate to โyou look young for your ageโ!
ใพใ ่ฅใใงใใญใพใ ใใใใงใใญ
mada wakai desune
You look younger than your age
ใธใผ่ฅใใใงใใญใธใผใใใใใงใใญ
aee wakasou desune
You look younger than your age

Happy Birthday in Japanese | Age Related Culture in Japan
Here are some facts about Japanese birthdays we also wanted to share.
DID YOU KNOW | Your 16th birthday is a big one! When a person turns 16, the five cycles of the Chinese zodiac are completed. The person is then considered โreborn.โ
In Japan, youโre considered an adult when you turn 20. Itโs also the age you can start to legally drink alcohol and are allowed to vote.
When someone turns 77 in Japan, theyโve reached the โhappy ageโ.
The 88th birthday is the โrice age,โ and the 99th birthday is considered the โwhite ageโ.
Remember, the birthday person never plans the party themselves.
Friends will get together, pick a day that everyone is free, and plan the party at a restaurant or a bar.
Now you know how to say HAPPY BIRTHDAY IN JAPANESE, let the party begin!!
BONUS LESSON | Learning the numbers is of course important when talking about birthdays.
Our friend Layla teaches you Japanese numbers up to 100 and trust us, it’s really not hard!
Enjoy learning about birthdays in other languages?
Why not check out our complete guides to learning how to say happy birthday in Mandarin Chinese, Russian, Korean and in Vietnamese also!
Happy Birthday in Japanese | FAQ’s
How do you say Happy Birthday in Japanese!
่ช็ๆฅใใใงใจใ (tanjyoubi-omedetou).
However, due to effect of western culture in Japan, young people may speak even more casually with each other, saying, ใใใใผใใผในใใผ (happi-basude) to each other.
How do you say “when is your birthday” in Japanese?
We can use ใใชใใฎใ่ช็ๆฅใฏใใคใงใใ (anata-no-tanjyoubi-wa-itsu-desu-ka), to ask when someone’s birthday is in Japanese.
How can I ask someone how old they are in Japanese?
How old are you in Japanese is ใใใใคใงใใ (o-ikutsu-desu-ka).
A more casual version would be ไฝๆญณใงใใ (nansai-desu-ka).
What is a formal way to wish someone a Happy Birthday in Japanese?
You can ใ่ช็ๆฅใใใงใจใใใใใพใ(o-tanjyoubi-omedetou-gozaimasu).
A literal translation of this phrase would be “congratulations on your birthday”.
How can I make a sentence polite in Japanese?
You can add the O prefix to a sentence (ใ).
For example with Happy Birthday you can say ใ่ช็ๆฅใใใงใจใใใใใพใใ
Notice the ใ at the start of the sentence.
How can I say have a great day in Japanese?
You can say ็ด ๆตใชไธๆฅใ sutekina-ichinichi-o.
At what age in Japan are you allowed to drink and vote?
Your 20th birthday in Japan is the magical age in which you are legally allowed to drink and vote.
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