Californium(III) bromide is an inorganic compound, a salt with a chemical formula CfBr3.

Californium(III) bromide is shown to crystallize in both the AlCl3 and FeCl3 type structures.

[1] Californium(III) bromide partially decomposes into californium(II) bromide under high temperature.

[2] In the radioactive decay of berkelium-249 to californium-249, the oxidation number and crystal structure are preserved.

The six-coordinate berkelium(III) bromide (AlCl3-type monoclinic structure) decays to produce a six-coordinate californium(III) bromide, whereas an eight-coordinate berkelium(III) bromide (PuBr3-type, orthorhombic structure) produces an eight-coordinate californium(III) bromide.