The songwriting legend will play a three-hour open-air set at Hop Farm in Kent on Saturday, September 8 as part of Vince Power's 'A Day At The Hop Farm' event.
Power said: "To get the opportunity to bring Leonard Cohen to the UK for his only appearance this year is a fantastic and humbling achievement.
"He is one of the undisputed forefathers of modern folk music and has honed his craft for nearly half a century. We're over the moon he's decided to join us for what will be a truly memorable experience."
Tickets go on sale this Friday, April 13 at 9am, though members of Cohen's fan club with have access to a pre-sale a day earlier.
They are priced at £65 for standing and £85 for seating.
Cohen this year released his 12th studio album Old Ideas, his first since 2004's Dear Heather.
Last month, he announced a full European tour, but the dates did not include any shows in the UK.
The one-day event in Paddock Wood follows the annual Hop Farm Festival at the same venue, which takes place in June.
This year's Hop Farm Festival is headlined by Bob Dylan, Suede and Peter Gabriel and the New Blood Orchestra, with support from Damien Rice, Primal Scream, My Morning Jacket, Maximo Park, Patti Smith and more.
> Leonard Cohen: 'Fans want moratorium on Hallelujah'
Watch the Leonard Cohen 'First We Take Manhattan' music video below: