Jeffrey David Boam (November 30, 1946 – January 26, 2000) was an American screenwriter and film producer. He is known for writing the screenplays for The Dead Zone, Indiana Jones and the Last Crusade, Innerspace, The Lost Boys, and Lethal Weapon 2 and 3. Boam's films had a cumulative gross of over US$1 billion. He was educated at Sacramento State College and UCLA. Boam died of heart failure on January 26, 2000, at age 53.