Gary Richard Perry Dicker (born 31 July 1986) is an Irish football coach and former professional footballer, who is a assistant manager for the Brighton & Hove Albion under 21’s. He started his career with League of Ireland club UCD and went on to make more than 200 appearances in the English Football League, most notably with Brighton & Hove Albion, then spending almost five-and-a-half-years with Scottish Premiership side Kilmarnock before semi-retiring in 2021 when he returned to Brighton and became a player-coach for Brighton & Hove Albion U23s. Dicker played for his country of Ireland at under-19 and under-21 level. Shortly after announcing his retirement from his playing career in January 2022, he became a coach for Brighton's under-18s.