Bulk single crystals of ErPd2Si2 with ThCr2Si2-type body-centered tetragonal structure have been successfully grown under a purified Ar atmosphere at a velocity of 10 mm/h using a floating zone method with optical radiation heating. The preferred crystal growth direction is close to the [110] orientation with an inclination angle of 15 against the rod axis. The as-grown crystals are Pd-depleted with respect to their nominal stoichiometry ErPd2Si2. The crystals contain small Er-oxide particles. The single-crystalline specimen shows antiferromagnetic ordering indicated by a lambda-type singularity of the specific heat capacity c(p)(T) at T-N=3.4 K. A broad anomaly around 15-20 K in the magnetic contribution to c(p)(T) indicates two-level Schottky-type behavior similar to that of PrPd2Si2. (C) 2014 Elsevier B.V. All rights reserved.