Brian Chapek is an American film producer and a a Production, Development, and Creative executive at Marvel Studios.

Chapek started out as an assistant to Brad Winderbaum and was eventually promoted to assistant producer on Thor: Ragnarok (2017), producer on the short film Team Darryl (2018), co-producer on Black Widow (2021), and executive producer on Thor: Love and Thunder (2022) and Thunderbolts (2025). He is the son of Bob Chapek, former CEO of The Walt Disney Company from 2020 to 2022.