Curium(III) chloride is the chemical compound with the formula CmCl3.

Curium(III) chloride has a 9 coordinate tricapped trigonal prismatic geometry.

[1] Curium(III) chloride can be obtained from the reaction of hydrogen chloride gas with curium dioxide, curium(III) oxide, or curium(III) oxychloride at a temperature of 400-600 °C: It can also be obtained from the dissolution of metallic curium in dilute hydrochloric acid:[2] This method has a number of disadvantages associated with the ongoing processes of hydrolysis and hydration of the resulting compound in an aqueous solution, making it problematic to obtain a pure product using this reaction.

It can be obtained from the reaction of curium nitride with cadmium chloride:[3]

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