Bassong, who was born in France but played for Cameroon at the 2010 World Cup, has previously worked under Norwich manager Chris Hughton at Newcastle.
Bassong wrote on his Twitter feed: "I've been officially transferred to Norwich today. 3 years deal. another chapter in my football life.
"I wish all the best to my old team mate at Spurs. I've had great time with them. I hope they'll success."
His signing, which follows that of Spanish defender Javier Garrido on loan from Lazio last week, comes as a welcome boost to the Canaries, who were beaten 5-0 at Fulham on the opening day of the Premier League season.
Source: AFP
Source: AFP