The house will be showing live Six Nations rugby on a giant screen, so fans can cheer on Ireland when they play Italy on 16 March. There will also be live coverage of London's St Patrick’s Day parade on 17 March.
Visitors can expect to chill with a pint and a bite to eat, enjoy live bands, traditional Irish music sessions, Irish dancing and special DJ sets, or relax on the roof terrace.
The organisers said: "The Irish House will be the party destination for St Patrick’s Day and we are delighted to be once again partnering with the Big Chill House. The house was a huge success last summer with more than 30,000 visitors and there has been huge demand since then to bring it back, therefore we thought the St Patrick’s Day weekend is the perfect occasion."
The house will be open on Saturday from 11am-3am and on Sunday from 11am-midnight.
Last summer, the Irish Olympic House featured a number of Irish performers including The Original Rude Boys, Hammerstep and Mick Flannery, plus appearances by celebrity ambassadors Barry McGuigan and Dara O'Brien.
Click here to watch our video of the Irish House launch party.
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