Obsession: Radical Islam's War Against the West is a 2005 documentary film about the purported threat of Islamism to Western civilization. The film shows Islamic radicals preaching hate speech and seeking to incite global jihad. It also draws parallels between World War II's Nazi movement and Islamism and the West's response to those threats.

Wayne Kopping of South Africa co-wrote and directed the film. Raphael Shore, a Canadian-Israeli, co-wrote and produced the film, and is the founder of The Clarion Fund, the film's distributor. The movie has received praise from conservative media personalities such as Glenn Beck and Sean Hannity.

Segments of the movie were broadcast on CNN Headline News and in several specials on Fox News. The movie was also screened on 30 college campuses and Capitol Hill. The unusual distribution of 28 million free Obsession DVDs as an insert in over 70 newspapers, predominantly in swing states, before the United States 2008 presidential election garnered much attention, with five newspapers refusing to distribute the DVD. National Public Radio reported that it was unclear as to who funded Clarion's distribution of the DVD.