Christian Dior SE (French: [kʁistjɑ̃ djɔʁ]), commonly known as Dior, is a French multinational luxury goods company that is controlled and chaired by French businessman Bernard Arnault, who also heads LVMH. As of December 2023, Dior controlled around 42% of the shares and 57% of the voting rights of LVMH. In addition, the Arnault family held a further 7% of the shares and 8% of the voting rights of LVMH as of that date.

The original fashion house was founded by French designer Christian Dior in 1946 to make haute couture items. Clothing is now produced by Christian Dior Couture, which is a subsidiary of LVMH, whereas Christian Dior SE is a holding company that controls LVMH. Bernard Arnault's daughter, Delphine Arnault, has been the CEO of Christian Dior Couture since February 2023. Bernard Arnault's eldest son, Antoine Arnault, is the CEO of Christian Dior SE.