Oceana, also known as The Ocean, was a chain of nightclubs in the United Kingdom owned and managed by Deltic Group.

There were also venues in Plymouth, Brighton, Bristol, Cardiff, Kingston, Watford, Leeds and Nottingham, however these have been converted to Pryzm nightclubs, another Deltic chain.

Oceana nightclubs were multi-room venues with each room themed on cities from around the world, with each having a different music style.

These included an Aspen Ski Lodge, a Venetian Ballroom, a Parisian boudoir, New York Disco, Wakyama Tokyo Stock Exchange, Monte Carlo casino, Villa Tahiti, Russia Bar, Milan Bar, Barcelona and a Reykjavik Ice house.

Milton Keynes was the first Oceana nightclub to be built in the new Xscape building before a chain of them was rolled out across the rest of the UK.