The Office comedian, a long-time fan of the 'Princess of China' indie band, believes it is impossible to criticise their desire to be successful.
Speaking about "straight down the line" bands, he told Q magazine: "Coldplay. There's obviously a backlash against them."
While acknowledging that the Mylo Xyloto group are "not the coolest in the world", Gervais insisted that they should be praised for their worldwide acclaim.
The 50-year-old added: "When you meet them they're nice, funny, normal people who are trying to be excellent at something.
"You can only applaud that. You can dislike their stuff but you can only applaud that attitude, you know?"
Frontman Chris Martin made a cameo appearance as himself in the second series of Gervais's BBC Two sitcom Extras in 2006.
Watch Coldplay's 'Charlie Brown' music video below: