Vanadium(III) acetylacetonate is the coordination compound with the formula V(C5H7O2)3, sometimes designated as V(acac)3.

[1] Like other V(III) compounds, it has a triplet ground state.

The compound is prepared by reduction of ammonium vanadate in the presence of acetylacetone.

[2] V(acac)3 is a common precatalyst for the production of EPDM polymers.

[3] It has also been shown to be a precursor to vanadium pentoxide nanostructures.