Charalampos Prokopios Chantzopoulos (; born 8 July 1994), also known as Haris Chantzopoulos, is a German professional footballer who plays as a centre-back for Regionalliga West club Wiedenbrück.
Chantzopoulos was born in Bielefeld, Germany to Greek parents. He played youth football with VfL Theesen, later joining VfR Wellensiek in 2011.
Chantzopoulos began his senior career in the German lower divisions, playing with VfR Wellensiek in the Bezirksliga in the late stages of the 2012-2013 season and the Landesliga in the 2013-14 season.
In the summer of 2014, he moved to Oberliga side Arminia Bielefeld II. He made his debut on 17 August 2014 against SV Wunschel.
In July 2016, he joined Oberliga side FC Gütersloh.
In January 2017, he signed with Finnish Ykkönen club FF Jaro.
In February 2018, he returned to Germany, signing with Rot-WeiÃÂ Erfurt in the 3. Liga.
In June 2018, he returned to Finland joining KPV. On 6 October 2018, he scored a hat trick in a victory over Klubi 04.
In January 2019, he signed with USL Championship club Sacramento Republic FC.
In January 2020, he returned to his former club in Finland, KPV. In February 2022, he signed a one-year extension with the club. In January 2023, he once again extended his contract for an additional season.
In January 2024, he signed with Canadian Premier League club Valour FC.
On 13 January 2026, after spending the whole 2025 without a club, he signed a contract with German Regionalliga West club SC Wiedenbrück on a one-and-a-half year contract.