The surface tensions of binary mixtures of 1-propanol, 2-propanol, 1-butanol, 2-butanol, 1-pentanol, and 2-pentanol in benzyl alcohol were measured over the temperature range of (20 to 50) degrees C using a platinum ring method. The surface entropies and surface enthalpies of the mixtures were obtained. The surface tension of the binary mixtures decreases with increasing linear alcohol content. The surface tension of the mixtures was fitted by a polynomial equation, and fitting parameters are presented.