Barreto passed away at the age of 72 following an illness. His wife, Fazi Barreto, confirmed that he died peacefully on Monday evening, 29 June, in Portugal, where he had settled after retiring from football.
The Buccaneers were among the first clubs to honour the Zimbabwean-born coach, whose name is forever etched into the club's history.
Barreto guided Orlando Pirates to the 2002/03 Premier Soccer League title and was also a key member of the technical team that helped the Soweto giants lift the 1995 CAF Champions League trophy after defeating ASEC Mimosas 3-2 on aggregate.
In an official statement, Pirates hailed his lasting contribution to the club.
"Orlando Pirates is saddened by the passing of our former coach, Roy Barreto. His contribution to the club's history and success will forever be remembered. We extend our heartfelt condolences to his family, friends, and the entire football fraternity during this difficult time. May his soul rest in peace," the club wrote.
Barreto's passing has sparked an outpouring of tributes from clubs, football organisations and supporters across South Africa and Zimbabwe, with many celebrating a coaching career that spanned several decades.
Before achieving success in the PSL, Barreto built a formidable reputation in Zimbabwe, where he was widely regarded as one of the country's finest tacticians. He also enjoyed coaching stints in Namibia before eventually relocating to Portugal after bringing an end to his coaching career.
The Zimbabwe Football Association (ZIFA) also expressed its sadness at the loss of one of the nation's respected football figures, acknowledging Barreto's immense contribution to the development of the game both at home and abroad.
Relebohile Mofokeng says fulfilling his dream of playing in Europe is only the beginning after completing his move to Belgian champions Royale Union Saint-Gilloise from Orlando Pirates.
Oswin Appollis' absence from Bafana Bafana's return to South Africa has intensified speculation that the Orlando Pirates winger could be on the verge of securing an overseas move.
Football player agent Mike Makaab has confirmed that versatile wingback Bandile Shandu is in advanced talks to join Betway Premiership side Durban City.
Orlando Pirates have reached an agreement with Royale Union Saint-Gilloise for the transfer of Relebohile Mofokeng.
