Physics involving tau lepton signatures form an integral part of the
ATLAS physics program, and are becoming more prevalent, given the
large amounts of data accumulated in 2011 and 2012 LHC running. This
talk reviews the increased sensitivity of searches for a Standard Model
Higgs boson in the low mass region, as well as searches for
neutral and charged supersymmetric Higgs bosons, decaying to tau
final states.
Other searches involving tau lepton signatures are also reviewed,
including searches for heavy gauge bosons, leptoquarks, and supersymmetric
decays. Standard Model processes from W, Z, and top pair production
involving tau leptons are also investigated.