Towards the end of the 2010–11 season, Le Guen claimed he had received job offers from several Ligue 1 clubs that were seeking new candidates to fill the remaining vacancies, but he turned them all down. He eventually accepted an offer from Oman national football team on 11 June 2011. He led Oman to qualification for the 2015 AFC Asian Cup, where they were to be absent in 2011. Oman were eliminated in the group stage of the tournament with one win and two losses. Le Guen was sacked on 19 November 2015 after a poor start of the 2018 FIFA World Cup qualification campaign.