Born in Athens, Greece, Nikos Chatzitsakos has been engaged with music from an early age. After graduating from the "Music School of Ilion", he entered the "National & Kapodistrian University of Athens" where he studied Musicology.
In 2016, after auditioning for "Berklee College of Music", he received a full-tuition scholarship. He received his bachelor's degree with "Summa Cum Laude", as a dual major in "Performance and Jazz Composition". There, he has studied with Linda May Oh, Ron Mahdi, John Lockwood, Susan Hagen, Terence Blanchard, Ralph Peterson, Billy Kilson, Darren Barrett, Neal Smith, Dave Santoro, Ayn Inserto, and Bob Pilkington.
Nikos has performed alongside distinguished musicians such as Ralph Peterson, Frank Lacy, Sarah Reich, George Kontrafouris, Charis Ioannou, Takis Paterelis. Some of the venues and festivals he performed are: Dizzy's Club Coca Cola at Lincoln Center, DC Jazz Festival, Scullers Jazz Club, The Berklee Performance Center (BPC), The Red Room @ Cafe 939, Wally's Jazz Cafe, SNFCC, Onassis Cultural Center, "Vamos Jazz in July" Festival.
In 2018 he recorded with Ralph Peterson’s GenNext Big Band featuring Frank Lacy the album entitled "Listen Up". The band won the 68th Downbeat critics poll 1st place “Rising Star Big Band" category and 2nd place on the 67th Downbeat critics poll. He is also the leader of the Nikos Chatzitsakos Tiny Big Band & Quartet for which he arranges and composes music.
Nikos’s arrangement won the 2020 Downbeat Student Music Award, his "Tiny Big Band" won 2nd place in the 2019 Seven Virtual Jazz Club Competition, and he was also a recipient of the 2020 Panhellenic Scholarship.