Josh Kerr made his NRL debut for St George Illawarra in 2019 after progressing through the Redcliffe Dolphins and Melbourne Storm pathways.
He has played more than 130 NRL games, captained the Indigenous All Stars in 2025 and joined Queensland's extended Maroons squad that year.
Hull FC has signed the former Dragons forward on a two-year deal ahead of the 2027 Super League season.
Kerr spent two and a half seasons with the Dolphins from 2023 to 2025 before returning to the Dragons.
The club approved his request for an immediate release from the final year of his contract; he made 87 appearances across two spells.
Hull coach Steve McNamara said Kerr's size, physicality and NRL experience would strengthen the pack and help maintain and improve squad standards.
Other Hull arrivals include Daly Cherry-Evans, Junior Pauga, Bailey Hodgson, Alrix Da Costa, Isaac Liu, Jordan Swann, Josh Coric and Connor Barley.