Searches for Dark Matter with the ATLAS detector

There is compelling evidence for the existence of Dark Matter (DM) in the universe. After a review of this evidence and of the various types of searches which can be conducted to detect DM, the role of the LHC in the quest for this elusive particle will be explained. The various ways in which DM could be searched for at the LHC and the most recent results from the ATLAS experiment will be discussed.