Dai, Tiesheng Rare and Exotic H Decays in ATLAS Exotic Higgs Decays, LFV in Higgs HDBS 2020 2020 The millions of Z and H bosons created at the LHC allow searches for novel decay signatures. Here we discuss ATLAS searches for possible rare decays: H->mu-e and decays to potential new particles: H->ZdZd, H->Za, H->aa. Most of these searches involve the full run 2 dataset.