Americium(II) bromide or americium dibromide is the chemical compound, a salt composed of an americium cation in the +2 oxidation state and 2 bromide ions in each formula unit, with the formula AmBr<sub>2</sub>.
It crystallises in the tetrahedral crystal system, different to americium dichloride. The dimensions of the unit cell are a = 11÷592 and c = 7.121 à.