Search for H± and H±± to other states than tau_had nu

The presented results of searches for charged Higgs bosons have been performed with the ATLAS detector. An outline of the analyses and the result of the charged Higgs to the tau_lep nu + lepton, tau_lep nu + jets and csbar final state are presented. Upper limits for these searches have been derived. Furthermore the limits for a doubly charged Higgs from a search for anomalous production of like-sign muon pairs are also presented.