To enable the selection of a light source of the ultraviolet region other than vacuum ultraviolet rays as a light source by exhibiting excellent ultraviolet emission when excited by a wavelength from the vacuum ultraviolet rays to the near-ultraviolet region.

A ultraviolet-emitting phosphor is represented by general formula: Ba1-xMxLn1-yGdyB9O16 (wherein M is one or more selected from Mg, Ca, and Sr; X is 0≤x≤0.2; Ln is one or more selected from Sc, Y, La, Ce and Pr; and y is 0<y≤1).