Yttrium perchlorate is the inorganic compound with the chemical formula Y(ClO4)3.

[1][2] The compound is an yttrium salt of perchloric acid.

[3][4] Dissolving yttrium oxide in perchloric acid solution can produce yttrium perchlorate octahydrate.

[citation needed] Potentially explosive.

[5] The compound is soluble in water and forms a hexahydrate with the formula Y(ClO4)3•6H2O.