Jeffrey Boam (November 30, 1946 - January 24, 2000) was an American film writer and producer. Some of his works include the scripts of The Lost Boys, Lethal Weapon 2 and 3 and, above all, Indiana Jones and the Last Crusade.
In the 1990s, Boam was rumoured to be working on a fourth Indiana Jones film script – Variety reported on October 18, 1995 that Boam was working on the scripts of Indiana Jones 4 and Lethal Weapon 4. There were were drafts floating on the internet that claimed authorship by him, such as Indiana Jones and the Sons of Darkness and Indiana Jones and the Sword of Arthur. However, just some time before his death, Boam confided to his brother Peter that none of those scripts were real.
Jeffrey Boam died in January 24, 2000, victim of a rare cardiac disease that resulted in heart failure.