The 19-year-old – who can operate as a central striker, number ten or in a wide role – has put pen-to-paper on the deal, which includes a Club option of a further year, just four months after arriving at the KCOM Stadium from Wigan Athletic.
Berry’s impressive performances for Jon Beale and Andy Dawson’s Development Squad saw him rewarded with a senior debut away at Blackburn Rovers last month having previously been an unused substitute for the trip to Queens Park Rangers at the end of December.
Speaking after committing his future to the Tigers, Berry said: “It feels absolutely fantastic to sign the new deal – it’s a proud moment for me and my family.
“I’m thankful to the gaffer, Cliff Byrne, Tony Pennock, Jon Beale, Andy Dawson and everyone else for giving me their full commitment and helping me to become a first-team footballer at Hull City.
“It was 100% the right decision to come to this Club back in November because it has been nothing but fantastic ever since I arrived.
“I’ve been playing regular football for the U23s – doing really well – and I’ve been involved with the first team more than I ever thought I would, so it’s been a fantastic move for me.
“To be able to say I’ve played in the Championship for Hull City is an absolutely fantastic feeling. I was really, really grateful to the gaffer for the opportunity he gave me and, while it’s something I’ll never forget, the aim now is to build on it.
“Now I’ve had that first taste of it, I want more. I want to do it every weekend. That is what drives me on and I’ll work has as hard as I possibly can to achieve my targets.”