O2 has agreed a 10-year naming rights deal with The Odyssey Trust to rebrand Belfast’s Odyssey site as The O2 Belfast. The agreement covers the full complex, including the arena, and takes effect from 1 July 2026, as the operator looks to expand its UK venue portfolio and strengthen its presence in Northern Ireland. The 10-year agreement covers the full Odyssey complex. This includes an 11,200-capacity arena, as well as leisure and education facilities on the waterfront site.