He is to take up a role with Belgium ahead of the World Cup.
Anthony Barry, the Chelsea coach, is to leave his position as assistant to Republic of Ireland manager Stephen Kenny to take a job with the Belgian national team.
Barry was credited as being a key figure in the revival of the Irish team under Kenny towards the end of the World Cup qualification campaign.
Barry’s first game in his new job will be against Ireland in a friendly, while it’s understood he will continue on the staff of Chelsea.
"I've thoroughly enjoyed my time with the team and really enjoyed working with Stephen and the entire backroom staff and players. I've been fortunate to work with some outstanding managers in my career and Stephen certainly falls into that bracket," said Anthony Barry.
"The opportunity to move on to Belgium and to have the chance to take part in the World Cup Finals was one I felt I couldn't turn down. Of course, I wish all of the team the very best of luck for the future."
"I'd like to thank Anthony for the positive contribution he has made over the past year with the players and staff alike," said Republic of Ireland manager Stephen Kenny.
"Anthony had a great rapport with the staff and players, he was thought-provoking, an exceptional coach and a joy to work with. We respect his decision and he leaves with our best wishes."
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