No, all the biographies are in French, see
http://www.all-over-the-world.com/FrancoiseHardy/books.shtml
There's one exception: her autobiography's got a Dutch translation but that's not a great help for you, I'm afraid.
The music magazine Record Collector published a few years ago a splendid and extensive article about Françoise. I don't know exactly when. But if you're interested, let me know.