The Fantastic Four: First Steps (stylized as The Fantastic 4: First Steps) is an upcoming American superhero film based on the Marvel Comics superhero team the Fantastic Four. Produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures, it is intended to be the 37th film in the Marvel Cinematic Universe (MCU) and the second reboot of the Fantastic Four film series. The film is being directed by Matt Shakman from a screenplay by the writing team of Jeff Kaplan and Ian Springer, Josh Friedman, Cameron Squires, Eric Pearson, and Peter Cameron. It features an ensemble cast including Pedro Pascal, Vanessa Kirby, Joseph Quinn, and Ebon Moss-Bachrach as the titular team, alongside Ralph Ineson, Julia Garner, Paul Walter Hauser, John Malkovich, Natasha Lyonne, and Sarah Niles. In the film, the Fantastic Four must protect their Earth, a 1960s-inspired retro-futuristic world, from being devoured by the cosmic being Galactus.

20th Century Fox began work on a new Fantastic Four film after the failure of Fantastic Four (2015). After the studio was acquired by Disney in March 2019, control of the franchise was transferred to Marvel Studios, and a new film was announced that July. Jon Watts was set as director in December 2020, but stepped down in April 2022. Shakman replaced him that September when Kaplan and Springer were working on the script. Casting was underway by early 2023, and Friedman joined to rewrite the script by that March, with Squires and Cameron also writing. Marvel Studios wanted to tell a new story with the characters rather than retell their origin story. Pearson joined to polish the script by mid-February 2024, when the main cast was announced, and additional casting took place in the following months. Filming began in late July 2024 at Pinewood Studios in London. Additional filming took place in Oviedo, Spain, and will wrap at the end of November.

The Fantastic Four: First Steps is scheduled to be released in the United States on July 25, 2025, as the first film, and beginning, of Phase Six of the MCU.