A lighting device for a vehicle includes a lens; a prism that is disposed on a rear side of the lens and that is configured to totally reflect an incident light and to then emit the light; a light source device configured to emit light toward the prism; and a reflective fluorescent body disposed on the rear side of the lens and configured to convert a wavelength of light emitted by the prism and to then reflect the wavelength-converted light to the lens. The prism includes an emitting surface that is spaced apart from an optical axis of the lens. A distance between the reflective fluorescent body and a rear surface of the lens is greater than a distance between the emitting surface of the prism and the rear surface of the lens.