According to her father, yes.
Her father, Will Knightley, broke the news to sources, confirming the split and revealing that is "hard" for Keira to move on from him.
The split was reportedly mutual, but Rupert is said to have gotten the the break up rolling as he no longer wanted to carry on a relationship so much in the public eye. One pal explains:
"Rupert hates the idea of being followed and photographed. Keira partially had to accept it because of her rising profile. It affected the harmony in the relationship. The pressure took its toll and both decided they should go their separate ways. They will remain life-long friends."
Let's hope that they do. If it really was mutual, it shouldn't be so hard to make work.
Update: The split is confirmed. Sad!
[Image via www.XposurePhotos.com.]