Premier League - Veteran Giggs signs new contract
The 37-year-old Welshman had already indicated his wish to continue his career into a remarkable 21st season at Old Trafford and United have confirmed the deal has been signed.
"All I've ever wanted to do is play for United and I've been lucky enough to do that for 20 years," said Giggs.
"It is great to know I'm still contributing to the team's success and I feel I've got a lot to offer on and off the pitch.
"This is an exciting time to be involved with so many good young players coming through."