We estimate CMS sensitivity to narrow resonances in the dijet final state. The generic signal shape and QCD background are presented as a function of dijet mass for jet pseudorapidity in the region abs(eta)<1. Statistical and systematic uncertainties are estimated for integrated luminosities of 100 pb^-1, 1 fb^-1, and 10 fb^-1 and a realistic trigger table including multiple thresholds and prescales for jets. The cross section for a dijet resonance that CMS can expect to discovery at 5 sigma significance or exclude at 95% confidence level is presented. We compare these cross section sensitivities with the expected cross section from models of excited quarks, axigluons, colorons, E6 diquarks, color octet technirhos, Wprime, Zprime, and Randall-Sundrum gravitons to determine the masses for which we expect to be able to discover or to exclude these models
