The title compound, (Z)-3-(3-chlorophenyl)-2-phenyl acrylic acid (C₁₅H₁₁ClO₂), crystallizes in the monoclinic space group P2₁ with the following unit-cell parameters: a = 18.7975(12), b = 15.3248(9), c = 24.378(2)Å, β = 108.058(8)° and Z = 20. The crystal structure was solved by direct methods and refined by full-matrix least-squares procedures to a final R-value of 0.0781 for 8174 observed reflections. The molecule consists of two phenyl rings and an acrylic unit. In this structure there are ten crystallographically independent molecules in the asymmetric unit. Apparently, some minor differences in the conformations of these molecules in the asymmetric units could lead to different hydrogen-bond motifs. The crystal structure contains intermolecular O-H…O and C-H…π hydrogen bonds. The minimum π-π distance is 4.864(6)Å.