Searches for new physics in high-mass di-fermion final states with the ATLAS detector at the LHC

Many new physics scenarios beyond the Standard Model predict resonant or non-resonant production of a pair of high-transverse momentum fermions (light and heavy quarks, charged leptons and neutrinos). The high-mass resonant production of top-quark pairs or a top-quark and a bottom-quark is also a good benchmark process for boosted top-quark and high-pT b-quark tagging. This talk summarizes searches in di-fermion final states at the ATLAS experiment in LHC Run 1.