In which film did Spider-Man first appear in the MCU?

Spider-Man first appeared in the MCU in Captain America: Civil War.

Released in 2016, the film introduced Tom Holland as Peter Parker, a teenage superhero living in Queens. Tony Stark discovers Parker's identity and recruits him to join the Avengers' conflict, leading to Spider-Man's memorable debut during the airport battle in Leipzig. His brief appearance established his MCU relationship with Iron Man before his solo story began.

Spider-Man: Homecoming (2017) was his first standalone MCU film, not his first MCU appearance. He later returned in Avengers: Infinity War, Avengers: Endgame, and other MCU films. The character's arrival followed a collaboration between Marvel Studios and Sony Pictures, which controlled Spider-Man's film rights.

Iron Man 2 is sometimes suggested because a fan theory identifies a child wearing an Iron Man mask as a young Peter Parker, but the film never confirms that interpretation. Spider-Man: Homecoming is also a common answer because it was his first solo adventure, while Civil War is the correct answer for his MCU debut.