Monodispersed spheres (1-4 mu m in diameter) of BaWO4:Eu3+ (hereafter BWO:Eu) red-phosphor exhibiting intense emission at 615 nm were synthesized via a mild hydrothermal method. X-ray diffraction, scanning electron microscope, photoluminescence excitation and emission spectra, and decay curve were used to characterize the properties of BWO:Eu phosphors. An intense red emission was obtained by exciting either into the L-5(6) state with 394 nm or the D-5(2) state with 465 nm, that correspond to two popular emission lines from near-UV and blue LED chips, respectively. The values of Omega (2,4) experimental intensity parameters (13.8 x 10(-20) and 8.2 x 10(-20) cm(2)) are determined. The high-emission quantum efficiency of the BWO:Eu phosphor suggests this material could be promising red phosphors for generating white light in phosphor-converted white light-emitting diodes.