The structural properties in Ag1−x La x NbO3 ceramics (where x = 0.005) have been systematically investigated at room temperature by using X-ray diffraction (XRD) technique and Raman spectroscopy. The studied sample has been synthesized via the conventional solid-state reaction method. The XRD result confirmed the formation of a single-phase with orthorhombic crystal structure for the studied composition. The signature of the Raman spectrum revealed structural modification with the inclusion of the doping element, with respect to the pure AgNbO3 system, showing additional modes in the middle wavenumbers range (570–758 cm−1).