Ireland's quest to progress beyond the Rugby World Cup quarter-finals for the first time will start against a European qualifier, possibly Russia, in Bordeaux on 9 September, 2023.
Andy Farrell's men will meet the Asia / Pacific 1 qualifier, likely Tonga or Samoa, next in Nantes before a clash with South Africa at the Stade de France in Paris on 23 September.
The final Pool B fixture is against Scotland at the same venue on 7 October. The teams met in their opening pool game on the 2019 World Cup with Ireland emerging comfortable 27-3 winners.
Hosts France will take on three-time winners New Zealand in the opening match of the tournament.
The Pool A fixture will be played on Friday, 8 September at the Stade de France.
England begin their campaign against Argentina in Marseille a day later, while Scotland will face defending champions South Africa in the same city on 10 September.
Wales kick-off their Pool C matches against Fiji in Bordeaux on 10 September, and will face Australia in Lyon a fortnight later.
World Rugby chairman Bill Beaumont said: "The match schedule announcement is the moment when the tournament truly comes alive for fans all around the world and is an exciting milestone on the road to Rugby World Cup France 2023.
"It has been developed with teams and fans at heart and we are confident it will provide the best possible platform for a thrilling, historic and very special Rugby World Cup in the sport's 200th year.
"I know I speak for fans around the world when I say that 2023 cannot come fast enough."
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