ATLAS Results on Higgs Boson Couplings

After the discovery of the Higgs boson in summer 2012, the understanding of its properties has been a high priority of the ATLAS physics program. The couplings of the Higgs boson to other SM particles as well as to itself are measured or constrained in a variety of single and double Higgs boson production processes and decay channels. A selection of these analysis is presented in this talk, as well as the most recent combination results of both single and double Higgs boson measurements.