Praseodymium(III) sulfide is an inorganic chemical compound with chemical formula Pr<sub>2</sub>S<sub>3</sub>.
Praseodymium(III) sulfide can be obtained by reacting praseodymium(III) oxide and hydrogen sulfide at 1320 ðC:
It could also be obtained by directly reacting sulfur with metallic praseodymium: