Spaniard Jon Rahm won the first of his two Irish Open titles in Portstewart in 2017
The Irish Open returns to Northern Ireland in 2021 when Portstewart organizes the European Tour event for the second time in four years.
The news was announced at the club's AGM on Thursday evening.
The members of Portstewart were told that discussions between the European Tour and the club last week resulted in an agreement.
The Irish Open returned to Northern Ireland after a gap of 59 years when it was played at Royal Portrush in 2012.
The event turned out to be a huge success because it was then a attracted a record number of visitors for a European Tour event.
Three years later, the event took place in Royal County Down before Portstewart was hosted in 2017 when Spaniard Jon Rahm won the first of his two Irish Open victories.
The successful staging of Royal Portrush from the event in 2012 helped convince R&A to return this year's Open Championship to Northern Ireland for the first time in 68 years. Irish Open will help preserve the dynamics of sport in Northern Ireland, which is also supported by Rory McIlroy & # 39; s exploits around the world.
Local hero Graeme McDowell is probably a strong candidate to take on the role of tournament host when the 2021 event takes place in Portstewart.
Next year's Irish Open will take place at Kilkenny on Mount Juliet from 28-31 May.