In searches for beyond the Standard Model physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of bosons produced with high transverse momenta from jets initiated by single partons. I will present state-of-the-art techniques used to identify highly-boosted hadronically-decaying W, Z and Higgs bosons. The studies are based on work carried out in both real and simulated data with the ATLAS detector in proton-proton collisions at \sqrt(s)=8 TeV. The distributions of the jet mass, substructure variables and b-tagging discriminators are well-described within uncertainties, which builds confidence in the expected tagger performance. These taggers are thoroughly re-evaluated and extended in simulated data in LHC Run2. I will also discuss prospects of innovative tagger developments in the near future.