Mike Newell has been unveiled as the new Grimsby manager.
Newell succeeds Alan Buckley, who was sacked last month, at the Coca-Cola League Two club.
"The directors are delighted with this appointment of this forward-thinking manager," said Grimsby chairman John Fenty. "It is now hoped that the fans and everybody associated with the club all get behind him."
The 43-year-old former Hartlepool and Luton boss has been out of work since he was sacked by the Hatters in March 2007.
The Mariners are currently fourth bottom in League Two.
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