B site ordered double perovskites ALaLiTeO(6) (A = Ba, Sr) were synthesized through solid state route and vibrational phonon modes were investigated for the first time using Raman spectroscopy to find the exact crystal symmetry. Even though X-ray diffraction indicated a cubic symmetry, a detailed Raman analysis showed a lower symmetry possibly due to tilting of octahedra. The obtained first order Raman modes are 8 for BaLaLiTeO6 and 13 for SrLaLiTeO6. Evaluated phonon modes were in good agreement with the corresponding group theoretical predictions for space group I4/m (for BaLaLiTeO6) and P2(1)/n (for SrLaLiTeO6). Rietveld refinement of the XRD patterns further confirm the space groups obtained for BaLaLiTeO6 and SrLaLiTeO6 and also show that 1:1 B site ordering of Te6+ and Li+ cations is present in both the compounds. Optical band gap of these compounds were found to be 3.5 eV for BaLaLiTeO6 and 4.0 eV for SrLaLiTeO6. (C) 2017 Elsevier Ltd. All rights reserved.