  Several scenarios beyond the Standard Model predict heavy long-lived
particles as a result of a kinematic constraint, a conserved quantum number or
a weak coupling. Such particles are possibly identified based on the detection
through abnormal energy losses, appearing or disappearing tracks, displaced
vertices, lepton-jet signatures, long time-of-flight or late calorimetric
energy deposits. This contribution summarizes recent results of searches for
heavy long-lived particles with the ATLAS detector using pp collision data at a
center of mass energy of 8 TeV.
