Denys Petrovych Molchanov (; born 16 May 1987) is a Ukrainian tennis player competing on the ATP Challenger Tour. He reached his highest ATP doubles ranking of world No. 58 on 29 January 2024. In 2015 he reached his highest singles ranking of No. 169.

He has won two ATP doubles titles. He has also won 15 ITF singles and 66 doubles titles, 36 of them Challengers. He also played for the Ukraine Davis Cup team.

Career 2018: Maiden ATP doubles final Molchanov reached his first ATP doubles final at the 2018 Swiss Open in Gstaad partnering Igor Zelenay.

2022: Maiden ATP title At the 2022 Melbourne Summer Set 1 Molchanov reached the semifinals partnering Ričardas Berankis losing to sixth seeds Aleksandr Nedovyesov and Aisam-ul-Haq Qureshi.

At the 2022 Open 13 Molchanov won his first title partnering Russian Andrey Rublev in Marseilles.

2023: 35th Challenger title, second ATP title, top 65 Molchanov won his 34th Challenger and first Challenger 175 in Turin partnering Kazakhstani Andrey Golubev. As a result, he returned to the top 100 in the doubles rankings on 22 May 2023.

He reached his third doubles final at the 2023 Stockholm Open and won his second title with Andrey Golubev. As a result, he reached world No. 62, a new career high doubles ranking on 23 October 2023.

2024: Win over world No. 1 pair, Major third round, top 60 At the 2024 Australian Open partnering Nikola Ćaćić the pair defeated the world No. 1 and No. 2 players, the top seeded pair of Austin Krajicek and Ivan Dodig in the second round to reach the third round, Molchanov's first third round at a Major. As a result he reached a new career-high doubles ranking of world No. 58 on 29 January 2024.

Performance timelines

Doubles

Mixed doubles

Personal information Denys Molchanov lives with his family in Zagreb.

In February 2015, he faced never confirmed or investigated allegations of match-fixing after suspicious betting patterns and unforced errors were noticed during a defeat to Agustín Velotti.

ATP career finals Doubles: 3 (2 titles, 1 runner-up) LegendGrand Slam tournaments (0–0)ATP World Tour Finals (0–0)ATP World Tour Masters 1000 (0–0)ATP World Tour 500 Series (0–0)ATP World Tour 250 Series (2–1)Titles by surfaceHard (2–0)Clay (0–1)Grass (0–0)Titles by settingOutdoor (0–1)Indoor (1–0)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1Swiss Open, Switzerland250 SeriesClay Igor Zelenay Matteo Berrettini Daniele Bracciali6–7(2–7), 6–7(5–7)Win1–1Open 13, France250 SeriesHard (i) Andrey Rublev Raven Klaasen Ben McLachlan 4–6 7–5 [10–7]Win2–1Oct 2023Stockholm Open, Sweden250 SeriesHard (i) Andrey Golubev Yuki Bhambri Julian Cash 7–6(10–8), 6–2

Challenger and Futures finals

Singles: 26 (15–11) Legend (singles)ATP Challenger Tour (0–0)ITF Futures Tour (15–11)Titles by surfaceHard (13–8)Clay (2–3)Grass (0–0)Carpet (0–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Ukraine F2, CherkassyFuturesClay Luca Vanni4–6, 3–6Loss0–2Ukraine F3, IllichevskFuturesClay Evgeny Donskoy7–6(12–10), 6–7(5–7), 4–6Win1–2Poland F2, KrakówFuturesClay Błażej Koniusz6–3, 6–2Loss1–3Turkey F9, IstanbulFuturesHard Uladzimir Ignatik2–6, 2–6Loss1–4Uzbekistan F2, NamanganFuturesHard Alexander Kudryavtsev4–6, 4–6Loss1–5Slovenia F2, Rogaška SlatinaFuturesClay Nikola Mektić3–6, 2–4 ret.Loss1–6Turkey F11, AntalyaFuturesHard Radu Albot3–6, 6–4, 5–7Loss1–7Turkey F5, AntalyaFuturesHard Cedrik-Marcel Stebe4–6, 3–6Win2–7Turkey F17, AdanaFuturesClay Carlos Calderón Rodríguez6–3, 6–0Win3–7Turkey F18, SamsunFuturesHard Alexandre Folie7–5, 7–6(7–5)Win4–7Turkey F19, AntalyaFuturesHard Paris Gemouchidis6–0, 7–5Loss4–8Kazakhstan F4, AlmatyFuturesHard Malek Jaziri3–6, 2–6Loss4–9Kazakhstan F8, AlmatyFuturesHard (i) Marcin Gawron5–7, 4–6Win5–9Kazakhstan F9, AstanaFuturesHard (i) Alexander Rumyantsev6–4, 6–4Win6–9Russia F2, Yoshkar-OlaFuturesHard (i) Mikhail Biryukov6–4, 6–0Win7–9Uzbekistan F2, NamanganFuturesHard Volodymyr Uzhylovskyi6–3, 7–6(7–2)Win8–9Uzbekistan F3, AndijanFuturesHard Richard Muzaev6–1, 6–2Win9–9Ukraine F8, PetrovskeFuturesHard Vladyslav Manafov6–1, 2–0 ret.Win10–9Ukraine F9, PetrovskeFuturesHard Sébastien Boltz7–5, 6–2Win11–9Kazakhstan F9, AstanaFuturesHard Chen Ti6–3, 6–4Win12–9Uzbekistan F3, AndijanFuturesHard Nikola Milojević2–6, 7–6(7–3), 6–4Win13–9Belarus F1, MinskFuturesHard Egor Gerasimov6–4, 7–5Win14–9Egypt F40, Sharm El SheikhFuturesHard Aldin Šetkić4–6, 6–4, 6–2Loss14–10Egypt F41, Sharm El SheikhFuturesHard Aldin Šetkić2–6, 3–6Win15–10Egypt F42, Sharm El SheikhFuturesHard Mikołaj Jędruszczak6–1, 6–2Loss15–11Kazakhstan F1, AktobeFuturesHard (i) Mikhail Fufygin6–4, 3–6, 4–6

Doubles: 120 (72–48) Legend (doubles)ATP Challenger Tour (42–36)ITF Futures Tour (30–12)Titles by surfaceHard (41–23)Clay (30–25)Grass (0–0)Carpet (1–0)