Aleksandra Krunić (Serbian Cyrillic: Александра Крунић; born 15 March 1993) is a Serbian professional tennis player. She was a doubles finalist at the 2025 and 2026 French Open and at the 2026 Australian Open, partnering Anna Danilina. She has a career-high doubles rankings of world No. 4, achieved in May 2026. Her best singles ranking is No. 39, reached in June 2018. Krunić has won ten WTA Tour titles combined, one in singles and nine in doubles, along with one WTA 125 singles title.
Krunić was a runner-up in the girls' doubles at the 2009 Australian Open, with Sandra Zaniewska. She made her WTA Tour debut at 2010 Slovenia Open, playing doubles with world No. 2, Jelena Janković, and made her WTA singles debut at the 2011 Budapest Grand Prix. At the 2014 US Open, in her second main-draw appearance at a Grand Slam tournament, Krunić won her first main-draw match and then reached the fourth round, beating 27th seed Madison Keys and third seed Petra Kvitová in the process. She also has wins in the qualifying rounds over former top-5 players Francesca Schiavone and Daniela Hantuchová.
Krunić has wins over former top-10 players, Timea Bacsinszky, while she was coming back from injury, as well as over Kimiko Date and Roberta Vinci in their last career matches, which were played in front of their home crowds in Tokyo and Rome, in 2017 and 2018, respectively. She has wins over Garbiñe Muguruza, Petra Kvitová, Jeļena Ostapenko, Elina Svitolina, Johanna Konta, CoCo Vandeweghe, Sara Errani, Vinci, Madison Keys, Ekaterina Makarova and Caroline Garcia.
Krunić was born to Bratislav and Ivana Krunić in Moscow and has a sister named Anastasia. She resides in Moscow, Bratislava and Belgrade, and speaks – beside Serbian – Slovak, Russian and English fluently.
Krunić picked up a tennis racquet aged seven. She began training tennis at the Spartak Moscow club, which spawned numerous tennis stars such as Anna Kournikova, Elena Dementieva, Marat Safin, Anastasia Myskina, Igor Andreev and others. Since then Krunić has been coached by Edouard Safonov. In 2006, Krunić reached the semifinals of junior Kremlin Cup, losing to Dalia Zafirova. The following year, she won junior events in Podgorica, Livorno and Maia. In 2008, Krunić reached the quarterfinals of European Junior Championships in Moscow and won the junior event in Budapest. She also played at the junior event in Kramfors, however, withdrew from the final match against Croatian Silvia Njirić due to injury by a score of 6–3, 3–1 for Njirić.
In 2009, she played the second round of Australian Open in girls' singles and the final of girls' doubles event, partnering with Sandra Zaniewska. The two lost to Christina McHale and Ajla Tomljanović in the super-tiebreaker. She reached the second round of both girls' singles and doubles at the French Open, and lost in the first round of girls' singles at Wimbledon. Krunić also partnered with Tamara Čurović at the girls' doubles, however, they lost in the first round to Tímea Babos and Ajla Tomljanović. In April 2009, she reached her highest junior ranking when she was ranked world No. 17.
Although she had decided not to play juniors anymore, Krunić took part in the European Championships organized by both ITF and Tennis Europe, along with Bojana Jovanovski and Doroteja Erić in the team of Serbia.
2008–2010: ITF Circuit success
As a member of TK Red Star, Krunić won the national club championships in 2008. She was awarded with a wildcard for the tennis event in Prokuplje, Serbia organized by the ITF. On 6 July 2008, Krunić won the tournament and became the youngest title winner in 2008 by winning this event. In October 2008, she played two ITF events in Dubrovnik losing both times in the first round.
Krunić was invited by Serbia Fed Cup team coach Dejan Vraneš to join the team for the 2009 Fed Cup World Group play-offs versus Spain. Jelena Janković and Ana Ivanović secured Serbia's 4–0 win. Krunić debuted in a doubles match played on 25 April 2009, along with Ana Jovanović, and they were down 6–2, 1–0 against Llagostera Vives and Domínguez Lino, when the match was cancelled due to rain. In 2009, Krunić won a total of three ITF titles, including first in doubles. On 14 September 2009, she was ranked No. 795.
In January 2010, Krunić won her fourth ITF tournament in Quanzhou, China defeating domestic player Zhou Yimiao in the final, beating top seed and compatriot Bojana Jovanovski in semifinal. In May, she won ITF singles title in Moscow and was the doubles runner-up. Krunić made her WTA Tour debut at the Slovenia Open, playing doubles with world No. 2 and compatriot Janković. The two reached semifinals beating the fourth seeds Eleni Daniilidou and Jasmin Wöhr en route, but then had to withdraw from their semifinal match due to an injury of Janković.
2011–2012: WTA Tour singles debut
In February 2011, Krunić again was invited to play for Serbia Fed Cup team in the World Group II rubber against Canada. She lost her debut singles match against world No. 84, Rebecca Marino, in three sets. Krunić played the final doubles match with Bojana Jovanovski, beating Fichman and Pelletier to guarantee Serbia the spot in the World Group Play Offs. Serbia won that tie 3–2 against Slovakia, after Krunić and Janković having beaten Hantuchová and Rybáriková in three sets, rallying from 2–6, 1–5. With this win, Serbia qualified for the World Group.
In May 2011, Krunić qualified for the 100k Sparta Prague Open and reached the semifinals, before losing to world No. 10, Petra Kvitová, in straight sets. At Wimbledon and the US Open, she lost in qualifying. Krunić qualified for her first WTA Tour singles event in Budapest. She was leading against Nina Bratchikova 7–5, 1–0, when Bratchikova retired. Krunić lost her following match to third seed Klára Zakopalová. She played in Tashkent, and after qualification, Krunić won her second tour match, losing just one game to Kamila Farhad, before losing to Sorana Cîrstea, in two tight sets.
At the 2012 Australian Open, Krunić failed to qualify in the final round against Lesia Tsurenko. In February, she was again a part of the Fed Cup team; she lost to Yanina Wickmayer but won in doubles with Bojana Jovanovski to claim a historic victory for Serbia. In 2012, Krunić won one ITF title and lost one final in both singles and doubles. At the next Grand Slam tournaments, she failed to qualify. In Baku, Krunić reached her first tour main draw of the season and finished as a quarterfinalist for the first time. She beat fourth seed Andrea Hlaváčková, and in the second round Laura Pous Tió, but lost in three sets to eventual champion Bojana Jovanovski.
Krunić started season playing at the Australian Open qualifying, losing to Maria Elena Camerin in the third set. At WTA Tour events in Bogotá and Acapulco, Krunić did not qualify. In Irapuato, Mexico, she beat Olga Savchuk for her first ITF title of the year and seventh overall, dropping not a single set in the entire tournament. She played four clay-court tournaments and the best result was in Trnava, Slovakia when she reached semifinals beating top 100 player and top seed Jana Čepelová in the first round, but Barbora Záhlavová-Strýcová was better in two sets in the semifinal. At the French Open, she lost in three sets to Mariana Duque Marino in the second qualifying round.
After missing Wimbledon, Krunić played in WTA Tour events in Budapest and Baku without qualifying. In Baku, she was the only player who won a set against eventual champion Elina Svitolina. In doubles, Krunić played alongside Eleni Daniilidou and reached her first tour doubles final but they lost in three sets. US Open was the first major where she qualified for the main draw – she beat Carina Witthöft, Daria Gavrilova and Louisa Chirico, all in two sets. But in the first round, CoCo Vandeweghe was better in two sets. Week after US Open, she played an event in Trabzon, Turkey and won her last ITF title of the season, beating Stéphanie Foretz Gacon in the final. At the WTA events in Linz and Luxembourg, she had to qualify. In Linz, she did it but lost to lucky loser Maryna Zanevska, in three sets. In doubles, Krunić won three ITF titles during the season and lost in two finals.