The Canaries chief was reportedly planning to take the 32-year-old Republic of Ireland veteran for a six-week spell during the close-season in the United States, similar to last season when he scored three goals in seven appearances for Aston Villa.
However, despite working with Keane when the pair were at Tottenham Hotspur, Hughton insists there is no truth in the speculation. "That's the first time I've heard that one actually. I do know Robbie, but there's no truth in the story," he said.
Villa, who face Norwich in tonight's League Cup quarter-final at Carrow Road, have also been linked with a swoop to take Keane, while QPR boss Harry Redknapp is also thought to be interested in taking him. But Keane, who has recently helped Los Angeles Galaxy to MLS Cup glory, has hinted that he would be happy to use the break to recover from the knocks picked up during the MLS campaign.
Hughton, meanwhile, has praised the job done by Paul Lambert during his tenure at Carrow Road.
Hughton replaced Lambert at Carrow Road and, after a slow start, is beginning to pick up results with his side currently unbeaten in 10 games. "I can only speak about the job that he did here and what I've inherited. I have inherited a great group of lads that have integrated the new lads in in a very good way."