Terry Devlin (born 6 November 2003) is a Northern Irish footballer who plays for Portsmouth as a midfielder.
Devlin joined Glentoran from Dungannon Swifts on 31 August 2022. Devlin had made his debut for Dungannon Swifts at fifteen years-old. In his one season with Glentoran he became a first team regular and helped the side reach European qualification.
In June 2023, Devlin was announced as a signing for EFL League One side Portsmouth. He signed a three-year deal with the option of a further year.