The right-back admits he does not always speak English at the club but insists there is no rift between the French players and the rest of the squad
The 28-year-old defender is one of nine Frenchmen in Alan Pardew's 25-man Premier League squad, with six of those featuring in the 2-1 victory over Cardiff City last Saturday.
But Debuchy has moved to play down suggestions that there are divides within the squad, revealing that all of the players get on as well behind the scenes.
"It's true that in the dressing room we talk a lot in French," he said.
"We have a big group of French players. But we avoid always staying together.
"And we aim to speak in English with the other foreign players and the English ones. But it's good. There are no issues."
Newcastle are currently 11th in the Premier League table and will continue their campaign with a clash against Liverpool on October 19.