Jonathan Mridha (born 8 April 1995) is a Sweden tennis player of descent.
Mridha has a career high ATP singles ranking of No. 444 achieved on 7 March 2022 and a career high ATP doubles ranking of No. 508 achieved on 9 May 2016.
He received a wildcard for the 2023 Stockholm Open partnering Karl Friberg.
| { class="wikitable sortable mw-collapsible mw-collapsed" style=font-size:97% !Legend (singles) |
| ATP Challenger Tour (0–0) |
| ITF Futures/World Tennis Tour (4–1) |
| Hard (0–0) |
| Clay (4–1) |
| Grass (0–0) |
| Carpet (0–0) |
| Win | 1–0 | Czech Republic F4, Ústí nad Orlicí | Futures | Clay | Marek Jaloviec | 6–3, 6–4 | |
| Loss | 1–1 | Finland F1, Kaarina | Futures | Clay | Axel Michon | 3–6, 6–4, 1–6 | |
| Win | 2–1 | M15, Plovdiv, Bulgaria | World Tennis Tour | Clay | Bastián Malla | 6–3, 6–3 | |
| Win | 3–1 | M15, Frederiksberg, Denmark | World Tennis Tour | Clay | Markus Eriksson | 6–3, 7–6(7–5) | |
| Win | 4–1 | M15, Naples, Florida, U.S. | World Tennis Tour | Clay | Evan Zhu | 6-2, 7-6(7-4) |
| { class="wikitable sortable mw-collapsible mw-collapsed" style=font-size:97% !Legend (doubles) |
| ATP Challenger Tour (0–0) |
| ITF Futures Tour (5–2) |
| Hard (2–0) |
| Clay (3–2) |
| Grass (0–0) |
| Carpet (0–0) |
| Win | 1–0 | Sweden F2, Båstad | Futures | Clay | Fred Simonsson | Daniel Appelgren Mikael Ymer | 6–1, 6–7(5–7), 10–7 | |
| Win | 2–0 | Sweden F3, Båstad | Futures | Clay | Fred Simonsson | Serdar Bojadjieva Dragoș Nicolae Mădăraș | 7–6(7–4), 6–2 | |
| Loss | 2–1 | Croatia F12, Bol | Futures | Clay | Fred Simonsson | Maverick Banes Gavin van Peperzeel | ||
| Loss | 2–2 | Jounieh, Lebanon | M25 | Clay | Eric Ahren Moonga | Corentin Denolly Jonathan Eysseric | 7–6(7–4), 6–7(2–7), 7–10 | |
| Win | 3–2 | Antalya, Turkey | M15 | Clay | Gustav Hansson | Alexander Ovcharov Alexander Shevchenko | 6–3, 6–4 | |
| Win | 4–2 | Meshref, Kuwait | M15 | Hard | Antoine Bellier | Yurii Dzhavakian Mikalai Haliak | 6–1, 6–4 | |
| Win | 5–2 | Doha, Qatar | M15 | Hard | Simon Freund | Zizou Bergs Zura Tkemaladze | 6–1, 6–0 |
| {class=wikitable !Group membership |
| World Group (0–0) |
| Qualifying Round (0–0) |
| WG Play-off (1–1) |
| Group I (0–0) |
| Group II (0–0) |
| Group III (0–0) |
| Group IV (0–0) |
| Hard (1–1) |
| Clay (0–0) |
| Grass (0–0) |
| Carpet (0–0) |
| Singles (1–1) |
| Doubles (0–0) |
| Defeat | 1 | II | Singles | Switzerland | Henri Laaksonen | 6–7(5–7), 2–6, 3–6 |
| Victory | 2 | V | Singles | Sandro Ehrat | 4–6, 6–3, 6–4, 7–6(7–4) |
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