The Central Bank says there could be temporary shortages of some food items in Ireland if there's a no-deal Brexit.
It's also warning of a "sudden and sharp" shock to the economy if Britain crashes out of the EU.
It's latest report shows the economy is due to grow by 4 per cent next year - that's more than previously thought.
But it would be just 0.7 per cent if Britain leaves the EU without a deal.
That scenario would also mean 35 thousand less jobs being created here in 2020.
It says the government may need to look at measures aimed at protecting those parts of the economy from the effects of no deal.
A no deal Brexit isn't the only risk though.
The Central Bank thinks there's an increasing possibility of the economy overheating if it keeps growing the way it is.
