  We present recent measurements of the top quark mass by the ATLAS and CMS
experiments in the $\mathrm{t}\overline{\mathrm{t}}$ lepton+jets, all-hadronic,
and dilepton channels. In addition, we present a measurement using a topology
enriched in t-channel single top events. The analyses include observables whose
sensitivity to the top mass is calibrated using Monte Carlo simulation before
they are utilized to extract the value of $\mathrm{m}_{\mathrm{t}}$ in data.
The measurements outlined here enter into recent combinations by ATLAS and CMS
that yield a sub-GeV precision on the top mass.
