Atomised (German: Elementarteilchen; also known as The Elementary Particles) is a 2006 German drama film written and directed by Oskar Roehler and produced by Oliver Berben and Bernd Eichinger. It is based on the novel Les Particules élémentaires by Michel Houellebecq. The film stars Moritz Bleibtreu as Bruno, Christian Ulmen as Michael, Martina Gedeck as Christiane, Franka Potente as Annabelle, and Nina Hoss as Jane.

The film had its premiere at the Berlin Film Festival in Germany in February 2006. In contrast to the book setting in Paris, the film was shot entirely and is mainly situated in various places in Germany. Cities and states in Germany used for filming included Thuringia and Berlin. Contrary to the book, the film does not have cultural pessimism as a main theme, and it has an alternative ending.