  Measurements of the top quark mass are presented, obtained from CMS data
collected in proton proton collisions at the LHC at centre-of-mass energies of
7 TeV and 8 TeV. The mass of the top quark is measured using several methods
and channels, including the reconstructed invariant mass distribution of the
top quark as well as measurements based on charged particle information. The
dependence of the mass measurement on the kinematic phase space is
investigated. The results of the various channels are combined and compared to
the world average. The top mass is extracted from the inclusive top quark pair
production cross section measured at CMS.
