Billy Weber is an American film editor with several film credits dating from Days of Heaven (1978).
One of Weber's first editing roles was as associate editor (as William Weber) on Terrence Malick's first feature as a director, Badlands (1973). Badlands was edited by Robert Estrin; Weber edited Malick's next film Days of Heaven (1978). When Malick returned to film directing twenty years later with The Thin Red Line (1998); he once again hired Weber to edit it, along with Leslie Jones and Saar Klein. While Weber did not edit Malick's next film The New World, he was an associate producer on the project. Most recently, Weber was one of five collaborating editors on Malick's fifth feature, The Tree of Life (2011).