We measured the thermodynamic temperature of the melting point of gallium T_Ga using a Johnson noise thermometer (JNT) with an integrated quantum voltage noise source (IQVNS) as a reference. T_Ga was calculated using the fundamental constants recommended by the Committee on Data for Science and Technology (CODATA) for the revision of the International System of Units (SI). The measured TGa is consistent with the value defined in the International Temperature Scale of 1990.