Saw X is a 2023 American horror film directed and edited by Kevin Greutert, and written by Peter Goldfinger and Josh Stolberg. It is the tenth installment in the Saw film series, following Spiral (2021) and stars Tobin Bell and Shawnee Smith, who reprise their roles from the previous films, alongside Synnøve Macody Lund, Steven Brand, Renata Vaca, and Michael Beach. Set between the events of Saw (2004) and Saw II (2005), the film sees John Kramer (Bell) travelling to Mexico in hopes that an experimental procedure may cure his terminal cancer. John later discovers that the operation is a scam, prompting him to kidnap those responsible and subject them to his trademark death traps as retribution, with Amanda Young (Smith) acting as his accomplice.

A tenth installment was reported to be in development with Twisted Pictures in April 2021, when Stolberg and Goldfinger, writers for the previous two entries of the series, announced that they had completed the script in December 2021. Greutert, who had directed two other installments of the series and edited six, was also confirmed as the film's director. Filming took place between October 2022 and February 2023 in Mexico City.

Saw X was theatrically released by Lionsgate Films on September 29, 2023. It grossed $125 million worldwide and received generally positive reviews from critics, making it the best-reviewed Saw film. A planned sequel, Saw XI, was originally scheduled for release on September 26, 2025, but pre-production was halted.