s =1.8 TeV

Measurements of the properties of the top quark carried out by the CDF and DØ experiments at the Tevatron are reviewed. The core of the published results available at the time of this talk comes from measurements carried out in the first run (Run I) of the Tevatron at s =1.8 TeV. New preliminary measurements using larger datasets provided by the upgraded Tevatron (Run II at s =1.96 TeV) are also reviewed