In the title compound, C(9)H(8)Cl(2)N(2)OS, the conformation of one of the N-H bonds is anti to the C=S group and the other is anti to the C=O group. Further, the conformations of the amide C=S and the C=O group are anti to each other. The 2,6-dichloro-phenyl ring and the 3-acetyl-thio-urea side chain are inclined to one another at a dihedral angle of 83.44 (5)°. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, mol-ecules form inversion dimers through pairs of N-H⋯S hydrogen bonds.