The present study investigates Dy³⁺-doped hybrid nano tungstates synthesized through a combustion synthesis method for photoluminescent and forensic applications. Different dopant concentrations of 1%, 3%, and 5% were employed to evaluate the effect of Dy³⁺ incorporation on the structural and optical properties of the synthesized nanotungstate. X-ray diffraction analysis confirmed the formation of highly crystalline nano tungstates, while scanning electron microscopy revealed uniform nanoscale morphology. Fourier transform infrared spectroscopy and UV–Visible spectroscopy were used to analyze the bonding characteristics and optical absorption behavior of the prepared materials. Photoluminescence studies exhibited intense blue and yellow emission bands corresponding to the characteristic transitions of Dy³⁺ ions, resulting in efficient white light emission suitable for LED applications. The synthesized hybrid nanotungstate were also evaluated for latent fingerprint visualization under UV illumination, producing clear ridge patterns with enhanced contrast and sensitivity. The results demonstrate that Dy³⁺ doped hybrid nano tungstates possess promising material for forensic applications