The 28-year old Danish goalkeeper has put pen to a four-year deal which will keep him at Old Trafford until the summer of 2016 and is now looking forward to challenging David de Gea to the number one spot under Sir Alex Ferguson.
"I'm very pleased to have signed a new contract," Lindegaard told the club's official website.
"I'm glad and proud that the manager has shown the confidence he has in me by giving me a new deal.
"There is nowhere in the world I would rather be than right here. The competition for places is tough, as it should be in a club like this. It only makes us better as individuals and, more importantly, stronger as a team.
"It's what I have dreamt of all my life and nothing makes me more proud than wearing the Manchester United badge."