The former Gunners ace says that he "would have loved to have played with" the German, who has settled in quickly at the Emirates Stadium after arriving from Real Madrid
Since the Germany international's deadline-day move from Real Madrid, the Gunners have gone from strength to strength and sit top of the Premier League thanks in no small part to his four goals and seven assists.
Henry, who scored 228 goals for the north Londoners, believes that Ozil has added even more class to Arsenal's midfield.
"I would have loved to have played with him. He reminds me of Robert Pires," the New York Red Bulls forward told Sky Sports ahead of Wednesday's Champions League defeat by Napoli.
"He will share the ball. He can find a guy who is quick; a target striker. He can play any type of ball.
"He has the thing you want from a midfielder: he always has time. It seems like he is playing on his own in his garden.
"He brought that composure on the ball that you need. I think he brought that to Arsenal, him coming with his name. You have got to back it up [and] he did back it up."
Asked what had impressed him the most about Arsenal’s displays this season, Henry replied: "Just the belief that they have again, knowing that they can beat any team at any moment.
"I think, if you remember well, the game against Bayern Munich [last season], away from home, did a lot for them.
"Knowing that they can beat the champions – [though] they didn't know it at the time – away from home, and well, did a lot for the team. Since that game, everything changed, for me."