Search for di-Higgs final states and rare or exotic decays of the Higgs boson by the ATLAS collaboration

I will review recently published results from the ATLAS Collaboration, focusing on di-Higgs final states and rare or exotic decays of the Higgs boson. Results will be based on either LHC Run 1 data or Run 2 data collected in 2015. Specific topics may include searches for resonant and non-resonant di-Higgs production in $b\bar{b}\gamma\gamma$ final states, di-Higgs production in $b\bar{b}b\bar{b}$ final states and lepton-flavor-violating decays of the Higgs boson.