The graffiti, entitled ‘Giant Rat’ will be the feature piece of the bar along with many other items of street art.
The bar will be located at 26 Leake Street, in the tunnel nicknamed ‘Banksy Tunnel’ after a lot of his early work was done on the walls.
The cocktail list will include rat inspired creations such as El Raton, Black Death and You Dirty, Double Crossing Rat.
Music will play a large part at the bar with an eclectic mix played and regular live sessions.
The bar will launch on 16 June and will run for three months.