Nicolás Barrientos

| residence = Cali, Colombia | birth_date = | birth_place = Colombia | height = | college = University of West Florida | turnedpro = 2009 | plays = Right-handed (two-handed backhand) | careerprizemoney = $ 614,727 | singlesrecord = | singlestitles = | highestsinglesranking = No. 237 (21 September 2015) | currentsinglesranking = | AustralianOpenresult = | FrenchOpenresult = | Wimbledonresult = | USOpenresult = | doublesrecord = | doublestitles = 1 | highestdoublesranking = No. 47 (22 April 2024) | currentdoublesranking = No. 47 (11 November 2024) | AustralianOpenDoublesresult = 2R (2023, 2024) | FrenchOpenDoublesresult = 2R (2023) | WimbledonDoublesresult = 2R (2024) | USOpenDoublesresult = 2R (2014, 2023, 2024) | WimbledonMixedresult = 1R (2024) | medaltemplates-expand = yes |medaltemplates= }}

| updated = 11 November 2024 }}

Nicolás Barrientos (;.}} born 24 April 1987) is a Colombian professional tennis player who specializes in doubles. He reached his highest ATP doubles ranking of world No. 47 on 23 April 2024 and a singles ranking of No. 237 on 21 September 2015. Barrientos has won one ATP Tour doubles title at the 2024 Rio Open with Rafael Matos. He has also won 21 titles on the ATP Challenger Tour. Provided by Wikipedia