日本的七夕是在日本的七夕节庆的相关习俗及历史由来。在日本，人们也有过七夕的习惯，其详细来源渊远流长，是为早期中日文化交流，中国的七夕与日本传统文化互相融合，七夕的风俗在奈良时代已由中国传入日本，但日本人很快便将它本地化。除了中国传统的「牛郎织女传说」外，日本人加进了棚机传说。「棚机传说」原出《古事记》，谓古时有一少女棚机的为了替村庄消灾解难，在水边织衣祭神，并结成一夜夫妻。奈良时期以来，七夕纪念棚机及牛郎织女并存，从七夕的日文是たなばた可见「棚机传说」的影响。另外补充一点，日本「七夕」的念法为「たなばた」由日文中的「棚机津女（たなばたつめ）」（织女）而来，而不是直接音读为「しちせき」。

Tanabata(七夕, meaning "Evening of the seventh"), also known as the Star Festival, is a Japanese festival originating from the Chinese Qixi Festival. It celebrates the meeting of the deities Orihime and Hikoboshi (represented by the stars Vega and Altair respectively). According to legend, the Milky Way separates these lovers, and they are allowed to meet only once a year on the seventh day of the seventh lunar month of the lunisolar calendar. The date of Tanabata varies by region of the country, but the first festivities begin on July 7 of the Gregorian calendar. The celebration is held at various days between July and August.