How do we translate " Déjà vu" into Arabic?

It means (already seen)..and we can keep it as it is in Arabic even. 

هي عبارة تستخدم للتعبير عن شئ حصل مسبقا....و ترجمتها تعتمد على سياق الحديث ...يعني ممكن تترجم "سبق أن رأينا هذا المشهد أو هذا الحدث" أو ممكن " حادثة لها سابقة في التاريخ" أو ممكن أيضاً "مررت بهذا الموقف من قبل" ...أرجو أكون أفدتك بالإجابة ..شكراً و اتمنى لكي التوفيق 

In general deja vu is an expression which nearly literally translate itself to شوهد من قبل أو تمت رؤيته من قبل , however it could refer to other tanslations such as  تم رؤيته من قبل أو تم الإحساس به من فبل أو حتى تمت زيارته من قبل and you can choose any one of them depending on your context !

From Wikipedia, the free encyclopedia   Jump to: navigation, search For other uses, see Déjà vu (disambiguation).
Déjà vu, from French, literally "already seen", is the phenomenon of having the strong sensation that an event or experience currently being experienced has been experienced in the past, whether it has actually happened or not.
         

رأينا بالفعل

شوهد سابقا = déjà vu

I hope i'm not offending anybody, but all the previous translations for ''DEJA VU'' are wrong,except for Fadi.
The phrase is in french with the meaning of ''already seen'' '' شوهد من قبل''.
there is an other case in which the phrase is a refference to the translation software called '' DEJA VU'', in this case it's concidered as a Trade Mark that can not bear any translation.
Good Luck.
  P.S.
: I'm a freelance translator ( Arabic / French / English ), everyone is welcomed for further help and collaboration  

(معناها ( رأينا بالفعل

Already saw !! :)

حرفيا "رأينا بالفعل"، هو ظاهرة وجود إحساس قوي بأن حدثا أو الخبرة التي تمر حاليا وقد شهدت في الماضي، ما إذا كان قد حدث فعلا أم لا literally "already seen", is the phenomenon of having the strong sensation that an event or experience currently being experienced has been experienced in the past, whether it has actually happened or not.

déja vu=رأينا بالفعل