Martin, who took on his current role last November, originally joined the Club in June, 2004.
Commented Martin: “I have always been fully committed to this great Club and am delighted that it in turn has such confidence in me.
“The Club has assembled what is probably the youngest squad in the Premiership and optimism is high because the potential here is terrific.
“The future looks good and I want to be part of it. There is still a lot of hard work to do but I have always been determined to see the job through and that remains my full focus.”
Commenting on the new contract Chairman, Daniel Levy said: "We have always sought to acknowledge significant contribution to the Club. In his role as head coach Martin has demonstrated his commitment and value to us and has brought a real sense of optimism to our squad and our fans."
We are delighted to announce that Head Coach Martin Jol has signed a new three-year contract.