It's the first time since the Second World War that the event has been called off.
For the first time since the Second World War, the Dublin Horse Show has been cancelled.
Organisers said the scale of the July event meant they had to make the call early.
Around 100-thousand patrons were due through the gates of the RDS for the five-day event.
Discussions are already underway about the staging of next year’s Horse Show.
Offaly And Longford Chase Semi-Final Spot In Division Four
NFL: Laois Travel To Fermanagh For Crucial Division Three Encounter
Gold Cup Takes Centre Stage On Final Day Of Cheltenham
Offaly TD Demands Stronger Ticket Touting Laws As Six Nations Prices Hit €3k
Offaly Travel To Dublin For Fourth Round Of National Camogie League
Athlone Town Get Title Defence Underway Tomorrow
Shane Lowry Left With Work To Do After Horror 18th At Players Championship
NFL: Must Win Game For Westmeath In Division Three
Westmeath County Council To Host Civic Reception For Athlone Town
Midlands Players Named In Ireland Squad For Showdown With Scotland
Irish Athletics Legend Ronnie Delany Dies Aged 91
Shane Lowry And Rory McIlroy In Action At Players Championship
NFL: Potential Make Or Break Weekend For Midlands Sides
Play Off Spot On The Line For Portlaoise Panthers This Weekend
Athlone Town Host Cobh Ramblers In First Division
Cheltenham Day Two: Il Etait Temp Takes Home Victory In The Champion Chase
Construction Begins On GAA Club Grounds In Laois
Tullamore Squash Club Recognised At National Awards
CCFL: Willow Park Stay Top Of Premier Division
Shane Lowry Back In Action At Player's Championship