Terbium(III) hydroxide is an inorganic compound with chemical formula Tb(OH)<sub>3</sub>.
Terbium(III) hydroxide reacts with acids and produces terbium(III) salts:
Terbium(III) hydroxide decomposes to TbO(OH) at 340ðC. Further decomposition at 500ðC generates Tb<sub>4</sub>O<sub>7</sub> and O<sub>2</sub>.