Oxlade-Chamberlain has drawn comparisons with fellow Arsenal winger Theo Walcott but Henry insists he is a unique player and has tipped him for success with the Gunners.
He told The Red Bulletin: "Alex Chamberlain is really good.
"He reminds me of himself and no-one else. He is writing his own story.
"I hope he will remain at Arsenal for a long time and he could forge a career we will never forget."