Aleksandar "Aco" Đukanović (Montenegrin Cyrillic: Александар "Ацо" Ђукановић; born 1965) is a Montenegrin businessman, widely considered to be one of the richest and most powerful individuals in the country, along with Brano Mićunović, Vesko Barović, Dragan Brković and others from the Montenegrin nouveau riche class that emerged during the 1990s following the break-up of SFR Yugoslavia.
All of Aco Đukanović's wealth and influence were achieved during his older brother Milo Đukanović's rule in Montenegro as Prime Minister and President of the Republic (1991–2006) and currently as the ruling political party's (DPS) president and prime minister again (2006–present).
Aco Đukanović's early business activity during the 1990s was folk concert booking, promotion and organizing through his first company Maraton.
Đukanović also held stake in Crnogorska komercijalna banka, which he sold to Hungarian OTP Bank for €10 million.
[8] Around the same time he bought the documentation for the third mobile operator licence in Montenegro (now m:tel) but ended up not placing an official bid, and the license went to Telekom Srbija.