Title: Direct Measurement of the W Decay Width Link to paper if available: Session of First Preference: Test of the Standard Model LP Session: Hadron Machines Abstract (max 1000 characters): We present a direct measurement of the W boson width using Run I data collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. This measurement uses an integrated luminosity of 85 pb^{-1} at sqrt{s}=1.8 TeV. The width is determined from the shape of the transverse mass spectrum of W boson events in the electron+neutrino decay channel. Submitted: 9 April 2001