SUSY Searches with the ATLAS Experiment

The Standard Model describes the elementary particles and their interactions. Supersymmetry, a symmetry beyond those included in SM, could resolve some shortcomings of Standard Model. It can provide a solution to the hierarchy problem and a candidate for Dark Matter. The Large Hadron Collider has the potential to produce some of the particles predicted by supersymmetry. This document presents searches for supersymmetric particles in proton-proton collision data recorded by the ATLAS experiment. The analyses are done using $\mathscr{L}=3.2$~fb$^{-1}$ proton-proton collisions at $\sqrt{s}=13$~TeV collected in 2015. Also, searches performed using up to $\mathscr{L}=20.3$~fb$^{-1}$ dataset at $\sqrt{s}=7$ and 8~TeV collected in 2011 and 2012 are presented.