Eddie, who founded whisky event and tasting company The Whisky Lounge (TWL), received the whisky knighthood at a grand reception at Blair Castle in Perthshire.
The Keepers of the Quaich is an exclusive society of international members, including leading figures in the industry and renowned experts in Scotch Whisky.
It was established in the 1980s and is reported to have around 2,500 members from more than 100 countries.
Members must be invited to join having made a notable contribution to the promotion Scotch of whisky.
Eddie Ludlow, whisky evangelist and founder at The Whisky Lounge, said: "It is a huge honour to join the Keepers of the Quaich and to be recognised for having made a positive impact on the industry that I love.
"Through my passion for Scotch Whisky, The Whisky Lounge was born. Its mission has always been to introduce whisky to new audiences by breaking down the barriers and myths that may stop people falling in love with the Water of Life.
"We pride ourselves on organising fun, accessible and relaxed events, which are as educational as they are engaging."
Annabel Meikle, director of Keepers of the Quaich, said: "I’ve known Eddie for nearly ten years and in that time, have watched him significantly progress his career.
"It was a brave step to set up The Whisky Lounge, but the success he enjoys today, is testament to that hard work.
"This hard work makes him particularly worthy to be inducted as a Keeper of the Quaich."
The ceremony took place on 17 October in the Grand Ballroom of Blair Castle and was hosted by Keepers of the Quaich President, the Earl of Dalhousie.