Japanese family vocabulary is one of the first things that surprises learners: there are two different words for almost every family member. One set for talking about your own family (humble), and another for talking about someone else’s family (honorific).
This distinction reflects the deeply Japanese concept of 内 (うち) / 外 (そと) — inside vs. outside groups. When speaking to outsiders, you humble your own family and elevate theirs. Getting this right is a core part of sounding natural in Japanese.
Core Family Terms: Own vs. Someone Else’s
This is the most important table in this guide. At minimum, memorize these:
| Relation | Own Family (Humble) | Reading | Someone’s Family (Honorific) | Reading |
|---|---|---|---|---|
| Father | 父 | ちち | お父さん | おとうさん |
| Mother | 母 | はは | お母さん | おかあさん |
| Older brother | 兄 | あに | お兄さん | おにいさん |
| Older sister | 姉 | あね | お姉さん | おねえさん |
| Younger brother | 弟 | おとうと | 弟さん | おとうとさん |
| Younger sister | 妹 | いもうと | 妹さん | いもうとさん |
| Husband | 夫 / 主人 | おっと / しゅじん | ご主人 | ごしゅじん |
| Wife | 妻 / 家内 | つま / かない | 奥さん | おくさん |
| Son | 息子 | むすこ | 息子さん | むすこさん |
| Daughter | 娘 | むすめ | 娘さん / お嬢さん | むすめさん / おじょうさん |
| Family | 家族 | かぞく | ご家族 | ごかぞく |
Key rule: When talking TO an outsider ABOUT your family, use the humble (左) column. When talking TO an outsider ABOUT their family, use the honorific (右) column. Example: “母は元気です” (My mother is well) vs. “お母さんはお元気ですか” (Is your mother well?).
At Home vs. Speaking to Outsiders
What you call family at home is different from how you refer to them to outsiders:
| Relation | At Home (Direct Address) | To Outsiders (Reference) |
|---|---|---|
| Father | お父さん / パパ | 父 (ちち) |
| Mother | お母さん / ママ | 母 (はは) |
| Older brother | お兄ちゃん / [name]兄ちゃん | 兄 (あに) |
| Older sister | お姉ちゃん / [name]姉ちゃん | 姉 (あね) |
| Younger siblings | [First name] / [name]ちゃん | 弟 / 妹 |
Grandparents & Extended Family
| Relation | Own Family | Reading | Someone’s Family | Reading |
|---|---|---|---|---|
| Grandfather | 祖父 | そふ | おじいさん | おじいさん |
| Grandmother | 祖母 | そぼ | おばあさん | おばあさん |
| Grandchild | 孫 | まご | お孫さん | おまごさん |
| Uncle | 叔父 / 伯父 | おじ | おじさん | おじさん |
| Aunt | 叔母 / 伯母 | おば | おばさん | おばさん |
| Cousin | いとこ | itoko | いとこさん | itoko-san |
| Nephew | 甥 | おい | 甥御さん | おいごさん |
| Niece | 姪 | めい | 姪御さん | めいごさん |
叔父 vs 伯父: Both read as おじ (uncle), but the kanji differs: 伯父 is for an uncle older than your parent, 叔父 is for one younger. Same for aunts: 伯母 (older) vs 叔母 (younger). In spoken Japanese, both sound the same.
In-Law Terms (義理の家族)
In-law relationships add the prefix 義理の (ぎりの) meaning “by obligation/marriage”:
| Relation | Japanese | Reading | Formal Term |
|---|---|---|---|
| Father-in-law | 義理の父 / 義父 | ぎりのちち / ぎふ | お義父さん (おとうさん) |
| Mother-in-law | 義理の母 / 義母 | ぎりのはは / ぎぼ | お義母さん (おかあさん) |
| Brother-in-law | 義理の兄弟 / 義兄 | ぎりのきょうだい / ぎけい | お義兄さん |
| Sister-in-law | 義理の姉妹 / 義姉 | ぎりのしまい / ぎし | お義姉さん |
Modern Usage & Evolving Terms
Some traditional terms are being reconsidered in modern Japan:
| Traditional | Issue | Modern Alternative |
|---|---|---|
| 主人 (しゅじん) = husband | Literally “master” — seen as outdated | 夫 (おっと) or パートナー |
| 家内 (かない) = wife | Literally “inside the house” | 妻 (つま) or パートナー |
| 嫁 (よめ) = wife/bride | Can sound possessive | 妻 (つま) |
| 奥さん (おくさん) = someone’s wife | Literally “person in the back” | Still widely used; no standard replacement yet |
Useful Phrases for Self-Introduction
When introducing your family in a 自己紹介 (self-introduction):
| Japanese | English |
|---|---|
| 家族は四人です。 | There are four people in my family. |
| 父は会社員です。 | My father is a company employee. |
| 母は教師をしています。 | My mother works as a teacher. |
| 兄が一人と妹が一人います。 | I have one older brother and one younger sister. |
| 祖父母は田舎に住んでいます。 | My grandparents live in the countryside. |
Related Japanese Language Guides
Frequently Asked Questions
The uchi/soto (inside/outside) distinction is fundamental to Japanese social language. When speaking to outsiders, you humble your own family and elevate theirs. This reflects the cultural values of modesty and respect.
At home, people typically use お父さん (dad), お母さん (mom), お兄ちゃん/お姉ちゃん (older siblings), and first names for younger siblings. Many families use パパ and ママ with young children. These differ from how you refer to family when speaking to outsiders.
The #1 mistake is using honorific terms (お母さん, お父さん) when referring to your own family to outsiders. Use 母 and 父 instead. Also avoid using 嫁 casually (can sound old-fashioned) and be careful with 奥さん in certain contexts.
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