The HPP Open is a professional tennis tournament played on indoor hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Helsinki, Finland, since 2019.

Year	Champion[1]	Runner-up	Score
2024	Kei Nishikori	Luca Nardi	3–6, 6–4, 6–1
2023	Corentin Moutet	Sumit Nagal	6–3, 3–6, 6–2
2022	Leandro Riedi	Tomáš Macháč	6–3, 6–1
2021	Alex Molčan	João Sousa	6–3, 6–2
2020	Not Held
2019	Emil Ruusuvuori	Mohamed Safwat	6–3, 6–7(4–7), 6–2

Year	Champions	Runners-up	Score
2024	Filip Bergevi Mick Veldheer	Romain Arneodo Théo Arribagé	3–6, 7–6(7–5), [10–5]
2023	Sriram Balaji Andre Begemann	Jeevan Nedunchezhiyan Vijay Sundar Prashanth	6–2, 7–5
2022	Purav Raja Divij Sharan	Reese Stalder Petros Tsitsipas	6–7(5–7), 6–3, [10–8]
2021	Alexander Erler Lucas Miedler	Harri Heliövaara Jean-Julien Rojer	6–3, 7–6(7–2)
2020	Not Held
2019	Frederik Nielsen Tim Pütz	Tomislav Draganja Pavel Kotov	7–6(7–2), 6–0