Praseodymium(III) acetate is an inorganic salt composed of a Praseodymium atom trication and three acetate groups as anions.

This compound commonly forms the dihydrate, Pr(O2C2H3)3·2H2O.

Each Pr(III) center is nine-coordinate, with two bidentate acetate ligands and the remaining sites occupied by oxygens provided by bridging acetate ligands.

The lanthanum and holmium compounds are isostructural.

[4] When the dihydrate is heated, it decomposes to the anhydrous, which then decomposes into praseodymium(III) oxyacetate(PrO(O2C2H3)) then to praseodymium(III) oxycarbonate, and at last to praseodymium(III) oxide.