The article reports the first chiral cerium halide, R/S-MCC, which exhibits circularly polarized luminescence (CPL) in the ultraviolet (UV) region. This material is a chiral organic-inorganic hybrid metal halide (OIHMHS) with a unique structure that allows the transfer of chirality from the chiral organic cations to the inorganic cerium chloride framework. The UV CPL emission is attributed to the characteristic d-f transition of Ce³⁺ ions, making it an ideal candidate for UV CPL light sources. The study also highlights the potential applications of UV CPL in various fields, including 3D displays, chiral catalysis, information encryption, and biomedical imaging. The work opens a new avenue for the development of chiral OIHMHS with UV CPL, combining the superior optical, electrical, magnetic, and spintronic properties of rare-earth elements with chirality.The article reports the first chiral cerium halide, R/S-MCC, which exhibits circularly polarized luminescence (CPL) in the ultraviolet (UV) region. This material is a chiral organic-inorganic hybrid metal halide (OIHMHS) with a unique structure that allows the transfer of chirality from the chiral organic cations to the inorganic cerium chloride framework. The UV CPL emission is attributed to the characteristic d-f transition of Ce³⁺ ions, making it an ideal candidate for UV CPL light sources. The study also highlights the potential applications of UV CPL in various fields, including 3D displays, chiral catalysis, information encryption, and biomedical imaging. The work opens a new avenue for the development of chiral OIHMHS with UV CPL, combining the superior optical, electrical, magnetic, and spintronic properties of rare-earth elements with chirality.