Janson Randall Junk (born January 15, 1996) is an American professional baseball pitcher in the Miami Marlins organization.

He played college baseball at Seattle University, spending three seasons (2015–2017)[1] with the Redhawks after joining the team as a walk-on.

[4] He spent most of the 2019 season with the High–A Tampa Tarpons of the Florida State League, while also making one start each for the Double–A Trenton Thunder and the Triple-A Scranton/Wilkes-Barre RailRiders.

[8] On September 3, the Angels selected Junk's contract from the Double-A Rocket City Trash Pandas and added him to their major-league roster.

[12] On November 22, 2022, the Angels traded Junk, Elvis Peguero, and Adam Seminaris to the Milwaukee Brewers for Hunter Renfroe.

[22] On February 10, 2025, Junk signed a minor league contract with the Miami Marlins that included an invitation to spring training.