Many extensions to the Standard Model predicts new particles decaying into
two bosons (WW, WZ, ZZ , W/Zgamma, W/ZH and HH) making this a smoking gun
signature. Searches for such diboson resonances have been performed in
final states with different numbers of leptons , photon and jets where new
identification techniques to disentangle the decay products in highly
boosted configuration are being used. This talk summarizes ATLAS searches
for diboson resonances with LHC Run 2 data.