Herkko Pöllänen (born 21 July 1994) is a Finnish tennis player. Pöllänen has a career high ATP singles ranking of 711 achieved on 13 January 2014. He also has a career high ATP doubles ranking of 531 achieved on 6 February 2017. Pöllänen represents Finland at the Davis Cup where he has a W/L record of 1–3. His first Davis Cup win came against Latvian tennis player Mārtiņš Podžus.