Japanese for Kids
How to Say "Happy birthday" in Japanese
Celebrate friends and family from around the world by wishing them a happy birthday in their language.
In Japanese (日本語)
お誕生日おめでとう (Otanjoubi omedetou)
Pronounced: oh-tahn-JOH-bee oh-meh-DEH-toh
What “Happy birthday” means and when to use it
The listed Japanese expression in this lesson is “お誕生日おめでとう (Otanjoubi omedetou).” Its beginner pronunciation approximation is “oh-tahn-JOH-bee oh-meh-DEH-toh.” Celebrate friends and family from around the world by wishing them a happy birthday in their language. The approximation is a reading scaffold, not a replacement for the native writing or for listening to a speaker whose variety you are learning.
Use this as a birthday wish when the person welcomes birthday attention. It can be spoken as a greeting, written on a card, or said before a celebration. The melody of a local birthday song and any additional lyrics are outside this listed phrase, so practice the words without inventing song lines. Birthday customs, calendars, and enthusiasm for parties differ between families and communities. Ask before creating a public spotlight, and never assume that everyone celebrates birthdays in the same way.
Participation is optional. Keep the activity secular and flexible, and do not label families who skip or alter birthday celebrations as joyless.
Japanese pronunciation workshop
Japanese timing is built from short, fairly even units called morae. Vowels are pure: a, i, u, e, o are roughly ah, ee, oo, eh, oh, though Japanese u is less rounded than English oo. Do not strongly stress one syllable as English often does. Long vowels and doubled consonants take extra time and can change meaning. The romanization in parentheses helps you segment the phrase, while the capitalized English approximation is only a memory aid and does not represent Japanese pitch accent.
Now apply those sound ideas specifically to “お誕生日おめでとう (Otanjoubi omedetou).” Read the native form first, then use “oh-tahn-JOH-bee oh-meh-DEH-toh” to locate the broad sound sequence and emphasized syllable. Say the entire expression in one comfortable turn. Do not substitute English sounds more strongly merely because a letter looks familiar, and do not erase marks, accents, or characters when copying it.
Clap a gentle, even pulse and fit one kana-sized beat to each pulse. Repeat without making the capitalized part dramatically louder. If the phrase contains a long vowel, hold it for its full timing; if it contains a small pause before a consonant, leave that tiny space.
Respectful context across Japan
Japanese speech choices reflect relationship and situation. Many translations in this collection use polite forms suitable for a beginner, but friends and family may use shorter casual forms. Bowing varies in depth and purpose; a learner can use a small nod without performing an exaggerated bow. Names are often followed by an honorific, and interrupting less can signal attentiveness. These are tendencies, not a script for every Japanese person, so notice how the people around you speak and respond.
This lesson teaches one useful listed translation, not the only wording used by all Japanese speakers. Age, relationship, region, and situation can change a speaker's choice. A good learner notices those choices, asks respectfully when appropriate, and accepts correction without arguing that a phrase list must outrank a person's own language experience.
Practice activity: scene, speak, reflect
Use a paper cake and a fictional character card. An English scene prompt says the character has chosen to celebrate. The learner presents a blank card and says the exact translated birthday wish; the partner, acting as the character, replies with the listed thank-you. Switch roles with quiet classroom, video-call, and family-card scenes. Clap the phrase's syllable rhythm without using a borrowed birthday tune. On the last round, read the native text only and keep every word in order.
Use three passes. On pass one, read “お誕生日おめでとう (Otanjoubi omedetou)” while a partner checks every word or character. On pass two, look only at the scene card and retrieve the expression from memory. On pass three, use an English scene prompt and deliver the Japanese speaking turn at a natural volume. Afterward, explain in English why the phrase fit that scene. This keeps meaning, respectful behavior, and pronunciation together instead of rewarding speed alone.
A successful attempt is understandable and considerate, not accent-free. Mark one detail you kept consistent—perhaps the stress, a long vowel, a tone direction, a final consonant, or the full word order—and choose one detail for another careful repetition. Stop before practice becomes rushed. Short, attentive rounds build a more reliable memory than saying the phrase many times without listening to yourself or your partner.
Practice dialogue
- Scene prompt (English)
- A fictional character has chosen to celebrate a birthday.
- Role-play cue (English)
- Learner A gives the character the target birthday wish.
- Japanese target speaking turn — Learner A
- お誕生日おめでとう (Otanjoubi omedetou)
- Role-play reply/action (English) — Learner B
- That is very kind of you.
- Japanese speaking turn — Learner B
- ありがとう (Arigatou)
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