Higgs boson couplings to bottom quarks at the ATLAS experiment

Testing the couplings of the Higgs boson to quarks is important to understand the origin of quark masses. The coupling of the Higgs boson to the bottom quark can be accessed in Higgs boson decays into a pair of b quarks, H->bb. In this talk the most recent analyses of the H->bb decay mode are presented based on the full Run 2 dataset of pp collision data collected at 13 TeV, as well as interpretations in terms of constraints on models of new physics described by an effective field theory.