The show’s creators Paul Whitehouse and Charlie Higson have signed up for a special online series which will air from November 14.
The Fast Show follows Alan Partridge and Vic & Bob as comedy acts that have been featured online by Foster’s.
The last series of the BBC sketch show was made in 2000.
In a statement, Whitehouse and Higson said: "We are delighted to bring back the Fast Show, not only for our old fans but, we hope, for a whole generation of new ones.
“We'll be bringing back all our most popular characters from the show and we’ve managed to get the majority of the team back together, including Caroline Aherne.”