Abstract: A silencer for a leaf spring for a commercial vehicle is provided. The silencer includes an upper rubber body having defined therein a fitting hole into which a second leaf spring is press-fitted, with a top surface of the upper rubber body serving as a contact surface in contact with a first leaf spring, and a lower rubber body having defined therein an accommodation space, with a first buffering protrusion being provided on a bottom surface of the lower rubber body such that a third leaf spring is able to be in contact with the first buffering protrusion.