Enthalpy increments for titanium disilicide were measured from 4.5 to 350 K with an adiabatic calorimeter. The enthalpy increments were combined with previous differential scanning calorimetry values to 500 K, Kopp’s rule estimates for 500-800 K, and previous enthalpy increment measurements for temperatures to 1700 K in order to give the thermodynamic properties of titanium disilicide to 1700 K. Values of the Debye temperature, theta(D), and the coefficient for the heat capacity of the conduction electrons, gamma(el), were determined from the model. Thermodynamic properties for formation from the elements at 298.15 K were also given.