Are there National Drinking Holidays? What are the National Drinking Holidays? And, for what respective country? i.e.: Oktoberfest for Germany
In the United States, there are several Drinking Holidays. Here's a list from this site: (I'm highlighting some of my favorites :)


  January

National Hot Tea Month
January 1: National Bloody Mary Day
January 11: National Hot Toddy Day
January 17: National Hot Buttered Rum Day
January 17:  **National Bootlegger’s Day**
January 18: National Gourmet Coffee Day
January 24: Beer Can Appreciation Day
January 25: National Irish Coffee Day
January 31: National Hot Chocolate Day, Brandy Alexander Day

  
  February

3rd Weekend of February: National Margarita Weekend
February 17 : National Cafe’ Au Lait Day
February 18: National “Drink Wine” Day
February 22: National Margarita Day
February 27: National Kahlua Day

  
  March

National Caffeine Awareness Month
March 3:  National Mulled Wine Day
March 17: St. Patrick’s Day
March 20: Bock Beer Day
March 27: National World Whisky Day

  
  April

**April 6: New Beer’s Eve
April 7: National Beer Day**
April 14: National Rum Day
April 17: World Malbec Day
April 19: National Amaretto Day

  
  May

First Saturday in May: National Homebrew Day
The 3rd Monday of May and the rest of the week: American Craft Beer Week
May 4: National Homebrew Day, National Orange Juice Day
May 5: Cinco de Mayo
May 6:  Beverage Day
May 8: Have a Coke Day
May 13: World Cocktail Day
May 16: National Mimosa Day
May 21: World Whisky Day
May 25: National Wine Day
May 30: National Mint Julep Day

  
  June

National Iced Tea Month
June 1-7: Negroni Week
June 4: Cognac Day
June 5: Moonshine Day
June 6: **National Give a Bum a Drink Day**
June 10: National Iced-Tea Day
June 11: National Gin Day
June 11: National Black Cow Day
June 14: Bourbon Day
June 19: National Martini Day
June 20: National Vanilla Milkshake Day
June 27: National Orange Blossom Day
June 30: National Mai Tai Day

  
  July

National Pickle Month
July 2 : National Anisette Day
July 10: Pina Colada Day
July 11: National Mojito Day
July 14: National Grand Marnier Day
July 19: National Daiquiri Day
July 24: National Tequila Day
July 25: National Wine and Cheese Day
July 27: National Scotch Day

  
  August

August 5: **International Beer Day**
August 6: National Root Beer Float Day
August 7: National IPA Day, International Beer Day
August 16: National Rum Day
August 20: National Lemonade Day
August 21: National Sweet Tea Day
August 22: National Spumoni Day
August 25: National Whiskey Sour Day
August 28: National Red Wine Day
August 29: Lemon Juice Day

  
  September

September 7: **National Beer Lover’s Day**
September 12 : National Chocolate Milkshake Day
September 15: National Creme de Menthe Day
September 20 : National Punch Day / Rum Punch Day
September 27: National Chocolate Milk Day
September 28: **National Drink a Beer Day**
September 29: National Coffee Day
September 29: National Mocha Day
September 30: National Mulled Cider Day

  
  October

National Applejack Month
Second Weekend in October: National Kegger Weekend
October 1: National Pumpkin Spice Day
October 4: National Vodka Day
October 7: National Frappe Day
October 15: National Red Wine Day
October 16: National Liqueur Day
October 19: National Gin and Tonic Day
October 20 : National Brandied Fruit Day
October 21: National Mezcal Day
October 27: **American Beer Day**

  
  November

November 7: World Gin Day
November 8 : National Cappuccino Day
November 8: National Harvey Wallbanger Day
November 12: National Happy Hour Day
November 14: National Pickle ‘Appreciation’ Day
November 18: National Apple Cider Day
November 19: National Macchiato Day
November 20: National Beaujolais Day
November 23: National Espresso Day

  
  December

December 3: National Peppermint Latte Day
December 3: National Rhubarb Vodka Day
December 5 : **Repeal of Prohibition Day**
December 10: National Lager Day
December 12: National Cocoa Day
December 13: National Screwdriver Day
December 20: National Sangria Day
December 24: National Egg Nog Day
December 31: National Champagne Day



Here is another calender and here's another.