The 2017–18 Rock Cup was a single-leg knockout tournament played by clubs from Gibraltar. This season's version of the Rock Cup was sponsored by Gibtelecom, and is known as the Gibtelecom Rock Cup for sponsorship purposes. This season's edition was held throughout the season for the first time since 2011–12. The winner of this competition, Europa, qualified for the 2018–19 Europa League. As they had also qualified for European competition via the 2017–18 Gibraltar Premier Division, the third place team in the league will take the spot in the Europa League.