Sadako DX (Japanese: 貞子 DX) is a 2022 Japanese supernatural comedy horror film directed by Hisashi Kimura. The film is an installment in the Ring franchise, and a sequel to 1998's Spiral. Sadako DX stars Fuka Koshiba as a quick-witted high school student who has to unravel the cursed videotape after finding out her sister has seen it, discovering that the curse now claims the victim's life only 24 hours after viewing it. Sadako DX also stars Kazuma Kawamura and Mario Kuroba.

Sadako DX premiered at the 2022 Fantasia International Film Festival. It was released in Japan on 28 October the same year.