Is Juvia French или Russian ???

Well, the setting of Fairy Tail is in an entirely different universe from ours so I guess French and Russians don't exist there. But her hat looks like a cossack hat used by the Russians and her skin is as pale as their skin. On the other hand, she has a French accent and also speaks some French words like 'Sacre Bleu' which is an old French profanity. Anyways, like I сказал(-а) before, they're in an entirely different universe so I guess the answer is NEITHER of the two Ты mentioned.

I hope I helped Ты with this ;)

she mike be russian by the clothes she wears . i mike be wrong my anwser is neither

She doesn't have a French accent in the OFFICIAL dub. I've had to stop watching the dub at episode 72 because all the dubs after that suck. They're either fandubs или dubs from some lameass company that did half a good job. Normal people can't just watch half a series in one voice set and the other half with a completely retarded one. Bring on Colleen Clinkenbeard for Erza ANY DAY. To answer your question, I believe that if Fairy Tail were to be compared to the real world, judging from her fashion sense she'd be Russian или thereabouts.

I'm gonna freeball this and say she's mixed или a Russian raised in France.
Especially since Russia and France are both part of Eurasia and it wouldn't (that) crazy to say her parents, whoever they are, met in one of the countries.