Ray Treacy Rovers fans when his penalty against Sligo helped win the FAI Cup in 1978. Treacy almost scored a hat trick for the Republic of Ireland national football team against Turkey in April 1978. The two goals he scored (along with the game's opening goal by Johnny Giles) represent the last occasion that a home-based player has scored for the senior Irish national team until 40 years later when in June 2018, Graham Burke, also a Shamrock Rovers player, scored against the United States. Treacy represented the League of Ireland in a friendly against Argentina in the Boca Junior Stadium in
Keith Treacy 29 November 2011, in a 4-0 win over Ipswich Town. However, Treacy's form and fitness began to falter, resulting him not being in the starting line-up, prompting Manager Howe insisted Treacy remained at the club throughout the transfer window. After returning from loan at Sheffield Wednesday, Manager Howe expected Treacy to return to the pre-season training ahead of the 2012-13 season and also expected to use him in the first team as well. After missing the first two games due to a groin injury, Treacy made his first appearance since returning from a loan spell at Sheffield Wednesday, coming on