|IBA Official Cocktail|
|Primary alcohol by volume|
|Served||On the rocks; poured over ice|
|Standard drinkware||Old Fashioned glass|
|IBA specified ingredients*|
|Preparation||Stir into glass over ice, garnish and serve.|
|* Negroni (cocktail) recipe at International Bartenders Association|
While the drink's origins are unknown, the most widely reported account is that it was invented in Florence, Italy in 1919, at Caffè Casoni, ex Caffè Giacosa, now called Caffè Cavalli. Count Camillo Negroni invented it by asking the bartender, Fosco Scarselli, to strengthen his favorite cocktail, the Americano, by adding gin rather than the normal soda water. The bartender also added an orange garnish rather than the typical lemon garnish of the Americano to signify that it was a different drink. After the success of the cocktail, the Negroni Family founded Negroni Distillerie in Treviso, Italy, and produced a ready-made version of the drink, sold as Antico Negroni 1919. One of the earliest reports of the drink came from Orson Welles in correspondence with the Coshocton Tribune while working in Rome on Cagliostro in 1947, where he described a new drink called the Negroni, "The bitters are excellent for your liver, the gin is bad for you. They balance each other."
The respected drinks historian David Wondrich has researched Camillo Negroni, who was born on 25 May 1868 to Enrico Negroni and Ada Savage Landor, and died in Florence on 25 September 1934. While his status as a count is questionable, his grandfather, Luigi Negroni, was indeed a count. 
Descendants of General Pascal Olivier de Negroni, Count de Negroni claim that he was the Count Negroni who invented the drink in 1857 in Senegal. "A Corse Matin" Sunday Edition article dated 2 February 1980 is translated on a descendant's blog: this claims he invented the drink around 1914. An article in the New Hampshire Union Leader reported on the controversy.
- The Negroni sbagliato is made in the same way as the Negroni, but replacing the gin with sparkling white wine, or Prosecco.
- Americano – 1 oz Campari, 1 oz Sweet Red Vermouth, a splash of soda
- Boulevardier – A similar cocktail that uses whiskey in place of gin.
- The Dutch Negroni substitutes Jenever for the London dry style gin in the original recipe.
- Old Pal uses dry vermouth and Canadian rye whisky
- Schaap, Rosie (May 21, 2014), "Negroni", The New York Times
- Cecchini, Toby (6 October 2002). "SHAKEN AND STIRRED; Dressing Italian". The New York Times. p. 913. Retrieved 2009-12-10.
- Regan, Gary (29 March 2009). "Negroni history lesson ends in a glass". San Francisco Chronicle. p. e-6. Retrieved 2009-12-14.
- Luca Picchi, Sulle tracce del conte. La vera storia del cocktail Negroni (On the Trail of the Count, The True Story of the Negroni Cocktail), Edizioni Plan, Florenz, 2002, ISBN 88-88719-16-4
- Felten, Eric (2007). How's Your Drink?: Cocktails, Culture, and the Art of Drinking Well. Agate Surrey. p. 207. ISBN 1-57284-089-7.
- "Oxford English Dictionary negroni". Dec 2009. Retrieved 2009-12-29.
The bitters are excellent for your liver, the gin is bad for you. They balance each other.
- Coshocton Tribune, 17 December 1947
- The Negroni.
- "The newspaper article, “Corse Matin, 1980”, Pascal".
- "Mark Hayward's City Matters". UnionLeader.com.
- "Campari Negroni sbagliato cocktail recipe". Campari.
- "Dutch Negroni".
|The Wikibook Bartending has a page on the topic of: Negroni|
|Wikimedia Commons has media related to Negroni.|