The Twins selected Jackson's contract from Triple-A St. Paul on Tuesday, Aaron Gleeman of AaronGleeman.com reports.
The 30-year-old failed to make Minnesota's Opening Day roster but elected to stay with the organization at Triple-A St. Paul, and he'll now get a chance in the majors with Ryan Jeffers (hand) landing on the injured list. Jackson had a .763 OPS in 100 plate appearances with the Orioles in 2025 and should serve as the backup catcher to Victor Caratini while Jeffers is sidelined.