The sustainable foods deli serves a mix of healthy, local, seasonal, organic and fair trade foods at its Nano Nagle Place premises.
They were the standout winner for the title when the nominees from across Cork were mystery shopped and judged by a panel of judges earlier this summer.
Speaking at the awards ceremony, JCI Cork President Lia Boyland said: “Good Day Deli and the other award-winning businesses create so much life, colour and culture in our city of Cork and we at JCI just want to say thank you for the dedication and hard work.”
With more than 60 exceptional businesses nominated this year competition was once again fierce.
In addition to the overall winner, there were six additional awards handed out.
The brand new dog cafe, Bark and Bumble, won best digital experience while Tom Winters Barbers had the best customer care.
For layout and design, the Cornstore was highlighted and for community impact, the Triskel Arts Centre took home the award.
The Quay Co-op won the Eco-friendliness accolade and for disability access, Good Day Deli once again came up trumps.
The six winners will now go forward to represent Cork in the JCI Ireland national FBAs in Galway in October.
In its eleventh consecutive year, the JCI Friendly Business Awards serve to recognise the important role that local businesses play in the continuous development and improvement of our country.
The project aims to award-friendly businesses, ones that go that extra mile and provide outstanding customer service to their customers and their community and who provide quality services at an exceptional standard.