Spider-Man: No Way Home is a 2021 American superhero film based on the Marvel Comics character Spider-Man, co-produced by Columbia Pictures and Marvel Studios and distributed by Sony Pictures Releasing. It is the sequel to Spider-Man: Homecoming (2017) and Spider-Man: Far From Home (2019), and the 27th film in the Marvel Cinematic Universe (MCU). The film was directed by Jon Watts and written by Chris McKenna and Erik Sommers. It stars Tom Holland as Peter Parker / Spider-Man alongside Zendaya, Benedict Cumberbatch, Jacob Batalon, Jon Favreau, Jamie Foxx, Willem Dafoe, Alfred Molina, Benedict Wong, Tony Revolori, Marisa Tomei, Andrew Garfield, and Tobey Maguire. In the film, Parker asks Dr. Stephen Strange (Cumberbatch) to use magic to make his Spider-Man identity a secret again following its public revelation at the end of Far From Home. When the spell goes wrong, the multiverse is broken open which allows supervillains and heroes from alternate realities to enter Parker's universe.

A third MCU Spider-Man film was planned during the production of Homecoming in 2017. Negotiations between Sony and Marvel Studios to alter their deal—in which they produce the Spider-Man films together—ended with Marvel Studios leaving the project in August 2019, but a negative fan reaction led to a new deal between the companies a month later. Watts, McKenna, Sommers, and Holland were set to return, and filming took place from October 2020 to March 2021 in New York City and Atlanta. No Way Home features several actors reprising their roles from the earlier, non-MCU Spider-Man films that were directed by Sam Raimi and Marc Webb. The return of previous Spider-Man actors Maguire and Garfield was the subject of wide speculation and numerous leaks despite the efforts of Sony, Marvel, and the cast to conceal their involvement.

Spider-Man: No Way Home premiered at the Fox Village Theatre in Los Angeles on December 13, 2021, and was theatrically released in the United States on December 17, as part of Phase Four of the MCU. The film received positive reviews from critics, who praised the story, direction, action sequences, and the cast's performances and chemistry. No Way Home has grossed over $1.3 billion worldwide, surpassing Spider-Man: Far From Home as the highest-grossing film released by Sony Pictures. It became the highest-grossing film of 2021, the 12th highest-grossing film of all time, and set several other box office records including for films released during the COVID-19 pandemic. A sequel is in development.