Erbium(III) telluride is an inorganic compound, one of the tellurides of erbium, with the chemical formula Er<sub>2</sub>Te<sub>3</sub>. It has a Sc<sub>2</sub>S<sub>3</sub> structure, a space group of Fddd, a band gap of 0.77(5) eV, and semiconducting properties. It can be obtained by the reaction of erbium and tellurium or the chemical vapor transport of erbium(III) chloride.