The latest measurements of the top quark mass in various decay channels of top quark pair production are presented. A brief introduction to the measurement techniques is given. The measurements are performed on data samples
of up to 4.8 fb−1 of integrated luminosity acquired by the CDF and DØ experiments in Run II of the Tevatron p¯p collider at a centre-of-mass energy of √s = 1.96TeV. The Tevatron combination using up to 5.6 fb−1 of data results in a preliminary world average top quark mass of mtop = 173.3 ± 1.1GeV. This corresponds to a relative precision of about 0.6%
