Searches for Supersymmetry with the CMS detector at the LHC

Results of searches for supersymmetry performed using data collected by the CMS experiment at the LHC in pp collisions at a centre-of-mass energy of 7 TeV are presented. Searches are performed in all-hadronic final states with jets and missing transverse energy and in final states including one or more isolated leptons or photons. Various data-driven techniques used to measure the Standard Model backgrounds are discussed. The results are interpreted in a range of supersymmetric scenarios.