María Camila Osorio Serrano (; born 22 December 2001) is a Colombian professional tennis player. She has a career-high singles ranking of No. 33 by the WTA, achieved on 4 April 2022, and a best doubles ranking of No. 162, achieved on 8 September 2025. She is currently the No. 1 singles player from Colombia.

Osorio has won three singles titles on the WTA Tour, as well as one on WTA 125 tournaments.

Career 2017-2019: Junior major champion and world No. 1 She won the girls' singles title at the 2019 US Open. In the final, she defeated Alexandra Yepifanova losing only one game. On the ITF Junior Circuit, Osorio advanced to the world No. 1 in September 2019.

Singles: Australian Open: – French Open: SF (2019) Wimbledon: 3R (2017) US Open: W (2019)

Doubles: Australian Open: – French Open: QF (2017) Wimbledon: 2R (2017, 2019) US Open: QF (2018)

At the 2018 Summer Youth Olympics, she won the bronze medal in girls' singles and a silver medal in mixed doubles, alongside Nicolás Mejía.

2021: Maiden WTA Tour title & top 100, WTA 1000 & major debuts

Osorio made her WTA 1000 debut at the Indian Wells Open. In April 2021, while ranked world No. 180, Osorio won her first singles title at the Copa Colsanitas in her native Colombia, defeating Tamara Zidanšek in the final. She followed up with a semifinal appearance at the Charleston Open the following week.

In May, she reached her third straight clay-court semifinal at the Serbia Open, entering the top 100 as a result. She came through the qualifying at the French Open to make her Major debut. However, she lost in the first round to Madison Brengle.

In June, she again qualified for the main draw at the Wimbledon Championships. She reached the third round by defeating fellow-qualifier Anna Kalinskaya and 32nd seed Ekaterina Alexandrova before losing to second seed Aryna Sabalenka.

Osorio started at the US Open defeating Ivana Jorović in the first round of the tournament, before losing to Ons Jabeur in the second. Osorio completed her first professional season by reaching the final of the Tenerife Open, where she eventually lost to Ann Li. She later revealed in an interview that she sustained an abdominal injury which affected her in the final round of the tournament. Her success at the tournament saw her reach a new career high of No. 53 on 25 October 2021, finishing the season ranked No. 55.

2022: Australian debut, first major & WTA 1000 wins, top 35 Osorio gained direct acceptance at the Monterrey Open. She reached her third Tour-level singles final, losing to second seed and 2021 US Open runner-up, Leylah Fernandez, after having multiple match points.

She reached a career-high ranking of No. 33 on 4 April 2022.

2023: First Australian Open & top 5 wins, WTA 1000 fourth round

Osorio won her first match at the Australian Open defeating Panna Udvardy.

She gained direct acceptance at the Lyon Open where she reached her first semifinal of the season defeating local and third seed of the tournament, Alizé Cornet, in the first round, Jule Niemeier in the second and Linda Nosková in the quarterfinals. She lost her semifinal match to top seed Caroline Garcia, in straight sets.

Ranked No. 70 at the Monterrey Open, Osorio retired in the first round in the second set against Mayar Sherif. As a result of not being able to defend her points from the previous year final, she fell 30 positions down to top 100 on 6 March 2023.

Ranked No. 115, she received a wildcard for the main draw of the Madrid Open. She reached the third round of a WTA 1000 for the first time in her career, defeating Clara Burel and 32nd seed Marta Kostyuk. She qualified for the next WTA 1000, the Italian Open, and won her first-round match against Varvara Gracheva, after saving three match points. Next, she defeated 29th seed Petra Martić to reach back to back third rounds at a WTA 1000 level. She reached her first fourth round at a WTA 1000 level with a Top 5 win over Caroline Garcia, avenging her semifinal loss in Lyon and becoming the first Colombian woman to reach the round of 16 at a WTA 1000 tournament. As a result, she returned to the top 85 on 22 May 2023. As the top qualifying seed, she entered the French Open as a lucky loser, and defeated Ana Bogdan in the first round.

2024: Second title at home, WTA 500 semifinal

At her home tournament, the Copa Colsanitas in Bogotá, Colombia, Osorio reached the semifinals for the third time, defeating qualifiers Marina Stakusic and Anca Todoni and then second seed and defending champion Tatjana Maria. She reached her second final at the tournament defeating Sara Errani. She lifted her second title at the tournament defeating top seed Marie Bouzková in straight sets. As a result, she returned to the top 65 in the rankings.

At the WTA 500 Guadalajara Open, she defeated Hailey Baptiste and seventh seed Veronika Kudermetova in three sets, coming from 0-5 games in the third set and reeling off seven games in a row to win the match and reach the quarterfinals. Next she defeated Kamilla Rakhimova in straight sets to reach her first semifinal at the WTA 500-level, becoming the first Colombian to accomplish the feat. She lost in the last four to Olivia Gadecki.

2025: Singapore quarterfinal, third Bogota title

Seeded sixth at the Singapore Open, Osorio defeated Bernarda Pera and qualifier Dominika Šalková to reach the quarterfinals, where she lost to second seed Elise Mertens.

Osorio recorded her first tournament win in Indian Wells on her third appearance, defeating former champion Naomi Osaka.

At her home tournament in Bogotá she reached back-to-back finals defeating Emina Bektas, sixth seed Tatjana Maria again, and Julia Riera. She defended her title defeating Katarzyna Kawa. It was her third title at the tournament becoming the second player after Fabiola Zuluaga to win three or more titles in Bogota.

2026: WTA 125 title, French Open third round At the inaugural WTA 125 Philippine Women's Open, fifth seed Osorio progressed to the final with victories over second seed Alexandra Eala in the quarterfinals and third seed Solana Sierra in the semifinals. She claimed the tournament’s inaugural title by defeating fourth seed Donna Vekić in a three-set final.

At the Miami Open, she recorded her first win at the tournament over Kateřina Siniaková. At the 2026 French Open, Osorio reached the third round for the first time in her career, recording an upset win over 14th seed Ekaterina Alexandrova in straight sets, before winning in 3 hours and 30 minutes against Yulia Putintseva, the longest tour-level match win of her career.

Personal life Osorio is the granddaughter of Colombian national team football player Rolando Serrano.

Performance timelines

Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win–loss records.

Singles Current through the 2026 French Open. Tournament20162017201820192020202120222023202420252026Win %Grand Slam tournaments Australian OpenAAAAQ2Q31R2R1R2R1R0 / 52–5 French OpenAAAAQ11R2R2R2R1R3R0 / 65–6 WimbledonAAAANH3R1R1R2R1R2R0 / 64–6 US OpenAAAAA2R2R1R1R1R1R 0 / 62–6Win–loss0–00–00–00–00–03–32–42–42–41–43–40 / 2313–23National representationSummer OlympicsANH1RNH3RNH0 / 22–2Billie Jean King CupZ1Z1AZ1POZ1APOPOA0 / 013–4WTA 1000Qatar OpenANHANHANHANHAA3R0 / 12–1DubaiNHANHANHANHAAAA0 / 00–0Indian Wells OpenAAAANH1R1RAQ22R3R0 / 43–4Miami OpenAAAANHAAAQ21R2R0 / 21–2Madrid OpenAAAANHAA3RQ12R2R0 / 34–3Italian OpenAAAAAA2R4R2R1RQ10 / 45–4Canadian OpenAAAANHAAAA2R2R0 / 22–2Cincinnati OpenAAAAAQ1Q1Q2A2R1R0 / 21–2Guadalajara OpenNH2R1RNH0 / 21–2China OpenAAAANH2R3R0 / 22–2Wuhan OpenAAAANH1R1R0 / 20–2Win–loss0–00–00–00–00–00–12–35–32–36–87–60 / 2222–24Career statistics20162017201820192020202120222023202420252025Win %WTA TourTournaments 0011013161515207Career total: 88Titles0000010011Career total: 2Finals0000021011Career total: 4Hard win–loss0–06–46–29–37–714-1215–1210–1113–1213–150 / 7893–78 Clay win–loss4–47–312–434–116–616–35–315–717–79–50 / 53125–53Grass win–loss0–00–00–00–00–05–20–43–24–30–20 / 1312–13Overall win–loss(incl. ITF matches)4–413–718–643–1413–1335–1720–1930–2034–2222–220 / 59232–144 Win (%)Career total: Year–end ranking124910267231861865582796382$3,450,301

Doubles Tournament202120222023202420252026SRW–LWin%Grand Slam tournaments Australian OpenA1R2R1RA1R0 / 41–4 French OpenA2RA2R1R1R0 / 42–4 WimbledonA2RAA2R2R 0 / 33–3 US Open1R1R1R2R3R1R 0 / 63–6WTA 1000Guadalajara OpenNH1RANH0 / 10–1Win–loss0–12–51–22–33–30–40 / 189–18

WTA Tour finals

Singles: 5 (3 titles, 2 runner-ups) LegendWTA 1000 (–)WTA 500 (–)WTA 250 (3–2)Finals by surfaceHard (0–2)Clay (3–0)Grass (–)Finals by settingOutdoor (3–2)Indoor (–)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0Copa Colsanitas, ColombiaWTA 250Clay Tamara Zidanšek5–7, 6–3, 6–4Loss1–1Tenerife Ladies Open, SpainWTA 250Hard Ann Li1–6, 4–6Loss1–2Monterrey Open, MexicoWTA 250Hard Leylah Fernandez7–6(7–5), 4–6, 6–7(3–7)Win2–2Copa Colsanitas, Colombia (2)WTA 250Clay Marie Bouzková6–3, 7–6(7–5)Win3–2Copa Colsanitas, Colombia (3)WTA 250Clay Katarzyna Kawa6–3, 6–3

WTA 125 finals

Singles: 1 (title) ResultW–LDateTournamentSurfaceOpponentScoreWin 1–0 Philippine Women's Open, Philippines Hard Donna Vekić 2–6, 6–3, 7–5

ITF Circuit finals

Singles: 6 (3 titles, 3 runner-ups) Legend$25,000 tournaments (2–1)$15,000 tournaments (1–2)Finals by surfaceHard (0–3)Clay (3–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0Nov 2018ITF Cúcuta, Colombia15,000Clay Yuliana Lizarazo6–3, 7–6(2)Loss1–1Nov 2018ITF Norman, US25,000Hard Bianca Andreescu1–6, 0–6Loss1–2Mar 2019ITF Cancún, Mexico15,000Hard Lou Brouleau6–3, 4–6, 1–5 ret.Loss1–3Mar 2019ITF Cancún, Mexico15,000Hard Paige Hourigan4–6, 3–6Win2–3Aug 2019ITF Guayaquil, Ecuador25,000Clay Katerina Stewart7–5, 7–6(3)Win3–3Aug 2019ITF Guayaquil, Ecuador25,000Clay Katerina Stewart7–5, 6–3

Doubles: 3 (3 runner-ups) Legend$60,000 tournaments$25,000 tournaments (0–3)Finals by surfaceHard (0–2)Clay (0–1)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss 0–1 Aug 2019ITF Guayaquil, Ecuador25,000 Clay Yuliana Lizarazo Katerina Stewart Gabriela Lee 7–6(1), 6–7(6), [7–10]Loss 0–2 Feb 2021ITF Orlando, US25,000 Hard Conny Perrin Emina Bektas Tara Moore 5–7, 6–2, [5–10]Loss 0–3 Feb 2021ITF Boca Raton, US25,000 Hard Conny Perrin Usue Maitane Arconada Caroline Dolehide 3–6, 4–6

ITF Junior Circuit Grand Slam tournament finals Singles: 1 (title) ResultYearTournamentSurfaceOpponentScoreWin2019US OpenHard Alexandra Yepifanova6–1, 6–0

Junior Circuit finals Singles: 10 (7 titles, 3 runner-ups) LegendGrade 1 / B1 (6–1)Grade 3 (0–1)Grade 4 (1–1)

ResultW–LDateTournamentGradeSurfaceOpponentScoreLoss 0–1 Mar 2016San José, Costa RicaGrade 3 Hard Dalayna Hewitt 6–4, 3–6, 1–6Loss 0–2 Jun 2016Kelibia, TunisiaGrade 4 Hard Dalila Said 6–7(5), 3–6Win 1–2 Jun 2016Mahdia, TunisiaGrade 4 Hard Marie-Amélie Dardaine 6–1, 6–2Win 2–2 Jan 2017Barranquilla, ColombiaGrade 1 Clay Shelly Krolitzky 6–0, 7–6(3)Loss 2–3 Feb 2017Mar del Plata, ArgentinaGrade B1 Clay Emiliana Arango 2–6, 6–7(6)Win 3–3 Jan 2018San José, Costa RicaGrade 1 Hard Lea Ma 6–3, 5–7, 6–3Win 4–3 Jan 2018Barranquilla, ColombiaGrade 1 Clay Lea Ma 6–2, 6–2Win 5–3 Feb 2018Lambaré, ParaguayGrade 1 Clay Ana Geller 6–3, 6–1Win 6–3 Feb 2018Criciúma, BrazilGrade 1 Clay Alexa Noel 6–3, 6–4Win 7–3 Mar 2018São Paulo, BrazilGrade B1 Clay María Lourdes Carlé 3–6, 6–3, 6–3

Doubles: 4 (3 titles, 1 runner-up) LegendCategory B1 (2–0)Category G2 (1–0)Category G4 (0–1)