Raworth took over the show on 9 January after Marr left the BBC for Global to host a radio show for LBC.
Now, after seven months hosting the BBC's flagship politics talk show, Raworth is moving on.
She took a few minutes at the end of the show on 17 July to address her viewers: "And that is it from us here on Sunday Morning. The last time you will hear this iconic music. And that is also it from me."
Raworth added: "When I stepped into Andrew Marr’s show or shoes in January I never imagined we would be dealing with a war in Europe and the end of this Boris Johnson era. Extraordinary times. It has been a privilege to be with you throughout them."
Sunday Morning will be replaced by a brand new show to be hosted by former BBC politics editor Laura Kuenssberg, which will launch in September.
Commenting on her new role with the BBC, Kuenssberg tweeted: "I’m extremely happy to say that I’ll be in the BBC politics chair on Sunday mornings from September. It’s a genuine honour and real thrill to be working with an amazing team on the show, can’t wait to get started!"
In recent times, the BBC have lost a number of its on-screen politics talent including Newsnight presenter Emily Maitlis and her Americast co-host Jon Sopel to Global, as well as Newsnight's policy editor to the same corporation.
Andrew Neil also left the broadcaster last year for an ill-fated venture with GB News, which saw him quit after just weeks on air. Neil has subsequently joined Channel 4.
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