The Belgian joined the Canaries in the summer on a season-long loan deal.
However, he has been plagued by injuries that have limited his number of appearances this campaign to six.
"Ritchie has gone back to Manchester United," Norwich manager Paul Lambert told the club's official website.
"We thank Sir Alex Ferguson for loaning him to us and wish Ritchie well for the future and hope he goes on to have a successful career at Manchester United."
De Laet, 22, has had three league outings for the Red Devils.