The keystone of the standard model of particle physics, the Higgs Boson, was discovered during the first run of the Large Hadron Collider (LHC). The second run of the LHC just concluded, yielding a much larger dataset with higher energy collisions than in Run 1. While no evidence of physics beyond the standard model has yet been seen at the LHC, the current and future datasets are ripe for discovery. Supersymmetry remains one of the most promising theories for new physics accessible at the LHC, and there are many well-motivated ways it could have evaded detection thus far. In this talk, I will discuss the current status and outlook of searches for supersymmetry on ATLAS, with a focus on searches for supersymmetric particles with a long lifetime.