The Norwegian signed a three-year contract after his outstanding audition as interim.
The 1999 Treble-winning hero was chosen ahead of long-time first choice Mauricio Pochettino after garnering overwhelming support from fans, players and United power-brokers.
Solskjær was only ever intended to be a short-term fix after Jose Mourinho’s turbulent reign ended in December.
But he performed a dramatic turnaround in United’s form, moving them into contention for a top four finish and guiding them into the quarter-finals of the Champions League
He has won 14 out of 19 matches, after he took over from Jose Mourinho as a caretaker Manager.
Manchester United are currently contending for the fourth position in the Premier League and will be facing Barcelona in the Quater-final of the UEFA Champions league after overturning 2 goals deficit to defeat PSG in Paris, under Ole’s regime.
Players and staff became convinced he’d done enough to land the job long before today’s announcement.
Solskjaer said: “From the first day I arrived, I felt at home at this special club.
“It was an honour to be a Manchester United player, and then to start my coaching career here.
"The last few months have been a fantastic experience and I want to thank all of the coaches, players and staff for the work we’ve done so far.
"This is the job that I always dreamed of doing and I’m beyond excited to have the chance to lead the club long-term and hopefully deliver the continued success that our amazing fans deserve.”
Ole Gunnar Solskjaer has also been backed by former and current United players prior to the announcement.