Ulster Rugby has signed a 10-year agreement with the Kingspan Group, the world's leading provider of sustainable building materials, for the naming rights to what will now be called Kingspan Stadium.
The agreement will result in significant investment for the game of rugby at all levels within Ulster.
Kingspan, whose global headquarters are in Kingscourt, County Cavan, has been a sponsor of Ulster Rugby since 1999.
Commenting on the announcement in Belfast, Ulster Rugby CEO Shane Logan said: "We are delighted to have extended our partnership with Kingspan, one of Ulster's most successful international companies, and to have secured a stadium naming rights partner for the first time.
"This is a landmark deal and one that will have considerable benefits for all of rugby in Ulster.
"I want to thank Kingspan for its long-term commitment to the province and I look forward to many more special rugby occasions, from school and club finals to European match nights, at Kingspan Stadium in the future."
Pat Freeman, Managing Director of Kingspan Environmental, added: "Both Ulster Rugby and Kingspan are successful globally recognised brands within their respective fields.
"We have been a partner of Ulster Rugby for 15 years and have witnessed the tremendous growth of rugby in the province. We have also had extensive input into the redevelopment of the stadium through our high performance technologies.
"We are delighted to significantly extend our already strong association with Ulster Rugby by putting our name to such a wonderful sporting venue and are proud that the home of Ulster Rugby will be now known as Kingspan Stadium."
John Robinson, President of the Ulster Branch of the IRFU, warmly welcomed the new association when he said: "This long-term deal, with a leading Ulster company, will result in a highly significant investment for rugby in the province and is a contract of which all involved can be very proud.
"Rugby has never been stronger in Ulster and partnerships such as this will enable us to continue to grow the game at club and schools level and to remain competitive both in Europe and the PRO12."
Kingspan Stadium is owned by the Irish Rugby Football Union. It is located in south east Belfast and is the home of rugby in Ulster.
In 2012, Ulster Rugby secured £16.5 million of funding from the Northern Ireland Executive for the redevelopment of the ground. Three new stands were built raising capacity from 11,400 to 18,000.
The stadium hosts the Ulster Rugby squad's professional training base, consisting of a 7,000 square foot gym, meeting rooms and medical facilities.
Kingspan Stadium plays host to at least 15 Ulster Rugby matches a season and up to 30 schools and club rugby activities - from Under-10 Mini rugby to the Senior Cup final.
In an in-depth interview IRFU Performance Director speaks about Ireland's Rugby World Cup review and the key learnings, the structure of the professional game, player contracts and movement and the challenges and opportunities for Irish Rugby.
Looking forward to the new GUINNESS PRO12 season, Connacht captain John Muldoon said: "We've a lot of younger guys who have big years ahead of them and a few big name signings who will hopefully be able to fit into the system and work hard among the ethos of Connacht Rugby."
Irish Rugby TV was at the launch of the GUINNESS PRO12 and we caught up with Jamie Heaslip, Pat Lam, John Muldoon, Matt O'Connor and Rory Sheridan of Diageo as the new sponsor gets ready to kick off an exciting season.
Out-half Dan Parks had a vital role in Connacht's historic Heineken Cup triumph in Toulouse, kicking two penalties, a drop goal and the touchline conversion of Kieran Marmion's try. He spoke to Rob Murphy after the game.
Rob Murphy caught up with Gavin Duffy after Connacht's inspirational defeat of Toulouse in the Heineken Cup, with the Mayo man giving an insight into how they produced such a high quality performance against the French giants.
Young scrum half Kieran Marmion was one of Connacht's star performers in their famous 16-14 Heineken Cup victory away to Toulouse, scoring a crucial second half try and picking up the man-of-the-match award.
Giving his reaction after Connacht's historic 16-14 win away to Toulouse, head coach Pat Lam said: "The belief's been there, we knew that this performance was not far away. To come here in a massive game with the side they put out is an unbelievable effort (from us) and I'm so proud of the guys."
Fergus McFadden, who helped to launch the Ulster Bank League awards in Dublin, spoke afterwards about his recovery from a fractured hand, previewed Leinster's back-to-back games against Northampton Saints and reflected on his involvement in the GUINNESS Series with Ireland.
Out-half Craig Ronaldson, who has made a successful transition from Ulster Bank League rugby with Lansdowne to a professional contract with Connacht, talks about the step up to this level of rugby, the importance of the league in providing game-time and a shop window for players and he also previews the province's back-to-back clashes with Toulouse.
Connacht head coach Pat Lam was proud of the performance his players produced in their 23-17 Heineken Cup defeat to Saracens, but he was left frustrated by some of referee Pascal Gauzere's decisions in a tight second half.
The Irish launch of the 2013/14 Heineken Cup took place in Dublin last week and Irish Rugby TV caught up with Sky Sports commentator Stuart Barnes to chat about his favourite Heineken Cup memories and get his thoughts on this season's tournament.