Lincolnshire Showground has postponed its Countryside Lincs event from April 5 until October 17, 2020 as the coronavirus outbreak takes hold on the county.
More than 5,000 people were expected at the event next month.
The organisers said: “By making this decision now, we are able to limit the impact on our charity and keep the safety of everyone involved at the heart of all we do.
“We understand that you may be as disappointed as we are, but we promise that we’ll spend the time between now and October making Countryside Lincs bigger and better than ever.”
If you’ve already bought your tickets for Countryside Lincs, these will be automatically transferred over to the new date.