The hugely popular striker joined from Leeds United in August 2002 and has since made 145 appearances in a Spurs shirt, scoring 54 goals in the process.
"You've got me for another four years!" said the 25-year-old, smiling broadly this morning. "It is something that has been going on for a while, I am just happy it is now signed and I can look forward to a good future with Tottenham.
"This is a club that is going places, I believe that and it is the reason why I signed here from Leeds in the first place. I had the feeling it was a club going in the right direction and I still believe this, especially with how the team are doing and the quality of players that have been bought in.
"Everything is geared towards the future and me signing this new contract is an another example of that.
"I am flattered and delighted the Club have given me the opportunity to sign. I am happy and have a lot of good friends here - players and staff. Making the right decision was important for me and I feel I have certainly done that."
The new captain of the Republic of Ireland national team is certainly a favourite among the fans and the extension of his stay is sure to be welcome news to the Spurs public.
"I'd like to think so," added Robbie. "I've been lucky enough since I signed in that the fans have been tremendous to me. This is also my way of thanking them for their support.
"I am looking forward to the next four years now with Tottenham and the gaffer."
Martin Jol was also happy in the knowledge that his association with his vice-captain is to continue in the long-term.
"We want to keep our best players and Robbie is certainly an influential player," responded the Head Coach. "All the speculation can stop now, I am very happy and the main thing is Robbie is so pleased to have signed his new contract.
"Robbie is important to us, a real team player and my second captain. He is a leader and has developed that quality.
"The aim now is to go on, win a lot of games and keep improving."
The Club is delighted to announce that Robbie Keane has signed a new four-year contract to extend his stay at the Lane.