Four organic acid salts including sodium lactate, sodium diacetate, potassium benzoate and potassium sorbate were evaluated, alone and in all combinations, for inhibitory effectiveness against Listeria monocytogenes on ready-toeat (RTE) meats. Sodium diacetate alone, sodium diacetate+ potassium benzoate and sodium lactate + sodium diacetate + potassium benzoate were most effective for inhibiting growth during storage. These results indicate that sodium diacetate provides an effective means of improved control of L. monocytogenes on RTE meats.