The Odyssey will be renamed The SSE Arena Belfast following a naming rights deal with Airtricity.
It will join a list of entertainment venues with the renewable energy company's name - including the SSE Hydro in Glasgow and the SSE Arena, Wembley.
The ten-year agreement in Belfast forms part of the upcoming refurbishment of the arena in September.
Seating at the sporting and concert venue is being replaced for the first time in a the £3m upgrade.
It opened in 2000 and remains Northern Ireland’s largest entertainment venue, hosting local and international stars from the world of music, sport, comedy and politics.
A dedicated customer lounge, reduced rate tickets and priority booking will be created for SSE Airtricity customers.
Robert Fitzpatrick, Chief Executive of the Odyssey Trust said: “Our new branding partnership with SSE heralds the next exciting chapter in the continued development of Northern Ireland’s iconic entertainment destination.
"The SSE Arena Belfast will benefit from the shared vision SSE has with the Odyssey Trust of delivering world-class live entertainment to the people of Northern Ireland, along with our many international visitors, and it comes at a time when the Odyssey Trust is investing significant resources in further enhancing the Arena’s facilities to ensure that The SSE Arena Belfast is recognised as one of the premier live entertainment venues worldwide.”
SSE Airtricity Managing Director Stephen Wheeler said: "At SSE we place our customers at the heart of everything we do and this agreement not only signifies our growing commitment to Northern Ireland, but delivers direct benefits to customers by giving them a unique experience when they visit the world class SSE Arena Belfast.
“Already an iconic venue, The SSE Arena Belfast’s upcoming refurbishment will ensure it continues to deliver world class events and entertainment to people across Northern Ireland. The range of sport and entertainment means there will be something for all our customers and we are delighted to be associated with the venue."