In the title compound, C(16)H(16)N(2)OS, the conformation at the two partially double C-N bonds of the thio-urea unit is E. The amide group is twisted relative to the thio-urea fragment, forming a dihedral angle of 62.44 (16)°, and the two phenyl rings form a dihedral angle 75.93 (18)°. In the crystal, mol-ecules are linked by N-H⋯S hydrogen bonds, forming centrosymmetric dimers.