The Nicholson's team say that a whole host of "unmissable events" are planned, with whisky brand ambassador holding talks and tastings, with exclusive offers and competitions also available.
A number of tasting events and workshops will also educate and allow customers to explore both classic and lesser-known brands.
There will be a selection of over 40 UK and global drams on offer – with highlights from this year’s Showcase set to include Bruichladdich’s Classic Laddie, Hibiki Harmony and Penderyn Madeira.
Nicholson’s regulars can join a whole host of brand ambassadors including the likes of Scotland’s Copper Dog, Bruichladdich and Kentucky-based Wild Turkey bourbon.
Additionally, Diageo will be showcasing its range of popular whiskies, including Johnnie Walker, Lagavulin, Talisker and Roe & Coe.
The event will take place at all eight of the chain's pubs in the capital, including The Mitre, The Last Drop and The Conan Doyle, and its Drum and Monkey Bar on Glasgow's St. Vincent Street.
