Derek Watt is an American former NFL fullback for the Pittsburgh Steelers of the National Football League. He played college football at Wisconsin, and was drafted by the San Diego Chargers in the sixth round of the 2016 NFL Draft. His older brother is J. J. Watt of the Houston Texans and his younger brother is Steelers teammate T. J. Watt. Watt played for the Chargers until 2020 before ending his career as a Steeler. Watt retired in 2022 and is enjoying retirement.