[en] Raman spectra of CuGa₃Te₅ that has a chalcopyrite-related structure with space group P anti 42c were obtained at room temperature from measurements performed under parallel (z vertical stroke xx vertical stroke z) and perpendicular (z vertical stroke xy vertical stroke z) polarization dependent configurations. A tentative assignment of the observed lines was made by comparison with the reported phonon modes for ZnTe, which is the binary analogue of CuGaTe₂, and also by using theoretical models reported in the literature for multinary compounds. The main lines observed at 129, 144, and 187 cm^-1 were assigned to the three A1-symmetry modes for P anti 42c ternary compounds predicted by group theory, and other lines at 91 and 277-285 cm^-1 to the B₁ modes. Also, lines at 55, 64, 102, 172, 224, 265-269, and 333-334 cm^-1 and lines at 78, 172, 224, 205-209, 242-249, and 342 cm^-1 were assigned to E and B₂ modes, respectively. The higher-phonon frequencies observed at 291-297, 303-310, and 319-323 cm^-1 are attributed to an overtone of the A₁ mode at 144 cm^-1, and a combination of A₁ and E modes, respectively. (copyright 2017 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)