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.
Connacht will be aiming to keep up their proud home record against Welsh regions - they have only lost to the Ospreys in the last three seasons - when they host the play-off-chasing Scarlets at the Sportsground tonight.
Ulster's round 21 clash with the Ospreys promises to be a dramatic affair at the Liberty Stadium, with both sides aware that victory in the fixture will represent a huge step forward in their bid to reach the GUINNESS PRO12 semi-finals.
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.
After releasing details of the Leinster Academy panel for 2015/16, Academy manager and former Ireland international Girvan Dempsey spoke of his excitement about the new emerging talent and the players who are graduating to the professional ranks.
Speaking to Rob Murphy after Connacht's PRO12 victory over the Dragons, head coach Pat Lam said: "There are some things to learn from, but we're pleased to start with a win. When you consider nine in that starting group are under 23, it's good to see some of those talented guys get a chance - particularly the new ones."
Irish Rugby TV ventured west to cover the launch of Mazda's continued support of Connacht Rugby. We hear from new arrival and Mazda Ambassador Mils Muliaina, Kieran Marmion, Jake Heenan and former captain Gavin Duffy.
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.
Speaking during Connacht's training trip to Ballinrobe RFC, captain John Muldoon said: "It's great to see the jerseys and the people coming out to support us today. Long may it continue because we're not a Galway team, we're a Connacht team and that's what we want to push and that's why we come out on these days out."
Young hooker David Heffernan, who extended his current deal with Connacht in April, enjoyed a trip back to his native Mayo as Pat Lam's men held an open training session at Ballinrobe RFC earlier this week.