The British comedian's series about the deluded manager of a business in suburban England was such a hit when it aired back in 2001 it spawned a huge U.S. spin-off starring Steve Carell - and now Ricky thinks it's due a musical adaptation.
He tells Britain's Daily Star newspaper, "I think anything can be made a musical, The Office or whatever. It's like people say to me you should do a sitcom about where I work, I'm a cab driver. And I go, 'No you should do a sitcom about where you work because it depends on the expertise.' "
However, he thinks his 2009 film "The Invention of Lying", about a man who discovers he is the only person in the world who is able to avoid telling the truth, is even more suited for a West End or Broadway musical adaptation.
"The obvious one would be The Invention of Lying because it's such a strong concept and the songs would be funny with people blurting out these truths," the 58-year-old explains.
The second series of the funnyman's new show, "After Life", a black comedy about a bereaved widower, is on Netflix now.