Translation guide
A private mailbox at a post office, used for receiving mail. In Japan, this is commonly called a 私書箱 (ししょばこ).
私書箱
post office box
A rented mailbox at a post office for receiving mail.
The standard term for a post office box in Japan. Used in addresses and official contexts.
私書箱を借りたいのですが。
I'd like to rent a post office box.
私書箱宛に送ってください。
Please send it to my post office box.
A more formal or full term, literally 'postal private box'. Often seen in official documents.
郵便私書箱番号を記入してください。
Please fill in your post office box number.
How to write a post office box in a Japanese address.
Standard address format for a post office box. The postal code and city are followed by 私書箱 and the box number.
〒100-0001 東京都千代田区私書箱 123号
P.O. Box 123, Chiyoda-ku, Tokyo 100-0001