David Jason Muir – born November 8, 1973 – is the anchor of ABC World News Tonight.
Muir previously served as the weekend anchor and primary substitute anchor on ABC’s World News Tonight with Diane Sawyer succeeding her on September 1, 2014.
At ABC News, Muir has won multiple Emmy and Edward R. Murrow awards for his national and international journalism.
As of 2019, World News Tonight with David Muir has become the most watched newscast in the United States.
In August 2003, Muir joined ABC News as anchor of the overnight news program World News Now.