Recent results of searches for beyond Standard Model physics in ATLAS

Recent results of searches for beyond Standard Model physics in ATLAS are presented, with particular focus on searches for new phenomena in high jet multiplicity final states. These include searches for charged Higgs boson in the $H^{+} \to tb $ decay channel, vector-like quark pair production, four-top-quark production in different signal benchmark scenarios and associated heavy Higgs boson production. No significant excess are observed in data and exclusion limits on cross sections and masses are given for the signal models in a number of benchmark scenarios, in most cases significantly extending the reach of previous searches.