It has been common knowledge that manager Mick McCarthy has been contemplating a change and he has opted for the former Birmingham defender.
Henry held the armband for three years but, with considerable competition for places in the Wolves midfield he is no longer guaranteed a regular spot.
McCarthy said: "I have decided to make the change and pass the armband onto Roger.
"I think it can be easier to captain the side from that position in the centre of defence where you can see everything in front of you and are perfectly placed to organise the team.
"Roger has carried that out successfully in the past and his leadership qualities will be of benefit to everyone."
McCarthy added: "I'd like to thank Karl who has carried out the job diligently and professionally.
"He will continue to be a key member of my team."
Johnson will skipper the side for the first time in Saturday's friendly with Real Zaragoza at Molineux.
Source: Team Talk
Source: Team Talk