Searches for new phenomena in leptonic or hadronic final states using the ATLAS detector

Many theories beyond the Standard Model predict new phenomena, such as Z’, W’ bosons, vector-like quarks, or heavy neutrinos. Searches for new physics in different final state signatures, produced either resonantly or non-resonantly, including a general search using multilepton final states are performed using the ATLAS experiment at the LHC. Lepton flavor violation (LVF) is a striking signature of potential beyond the Standard Model physics. The search for LFV with the ATLAS detector is reported in searches focusing on the decay of the Z boson into different flavour leptons (e/mu/tau). The most recent 13 TeV pp results will be reported.