Alexander Stanislavovich Bublik (Александр Станиславович Бублик; born 17 June 1997) is a Kazakhstani professional tennis player.

[6] Bublik made his ATP main-draw debut at the 2016 St. Petersburg Open, where he received wildcards into both the singles and doubles main draw.

Bublik qualified for the Kremlin Cup, where he notched the biggest win of his career, upsetting Roberto Bautista Agut in straight sets in the round of 16.

In September, after making the semifinals of a Challenger tournament in Istanbul, Bublik broke into the top 100 for the first time, reaching a career-high ranking of No.

Bublik won his first Roland Garros main-draw match over Rudolf Molleker, before losing a close four-set contest to eventual finalist Dominic Thiem.

[8] At the 2020 Australian Open Bublik reached his first semifinal at a Grand Slam in doubles partnering fellow Kazakh Mikhail Kukushkin where they lost to Rajeev Ram/Joe Salisbury.

As a lucky loser, Bublik reached the quarterfinals of Hamburg, beating Albert Ramos Viñolas and Félix Auger-Aliassime, before losing to Cristian Garín in 3 sets.

At the 2021 Madrid Open, he defeated Denis Shapovalov and Aslan Karatsev to equal his previous Masters 1000 result, but lost to Casper Ruud.

11 seeded Wesley Koolhof/Jean-Julien Rojer (third round) and Hugo Nys/Tim Pütz (quarterfinals) en route, his best showing at this Grand Slam.

[25] Representing Kazakhstan in the Davis Cup tie against Norway, he won both of his matches by beating Viktor Durasovic and world No.

[59] Seeded sixth and defending champion at the Open Sud de France, he was defeated in a dramatic first-round match by Grégoire Barrère.

[75] Seeded sixth at the Open Aix Provence, he made it to the quarterfinals where he was defeated by French lucky loser Harold Mayot.

[78] In Halle, Bublik kicked off his grass court season with an upset over seventh seed Borna Ćorić, crushing Coric in straight sets.

Bublik then emerged victorious in a close-fought hard three set win over Madrid Open finalist Jan-Lennard Struff, to reach the quarterfinals.

He beat James Mcabe, Dan Evans and 25th ranked, Lorenzo Musetti on his way to the semi-final, where he was beaten by Jack Draper in two sets.

[80] Bublik would suffer a suprise upset at the Australian Open 1st round where he lost to 137th ranked qualifier, Sumit Nagal in straight sets.

[82] Bublik won the tournament claiming his fourth ATP singles title, defeating Denis Shapovalov, Alexander Shevchenko, Felix Auger-Aliassime and Borna Coric.

In the final set after Bublik held serve to lead 6-5, Rublev shouted in the face of a line judge resulting in him being defaulted for unsportsmanlike conduct.

Bublik recieved media attention after giving his racket to a ball kid in the middle of a match at the Monte-Carlo Masters.

In the following tournament at the Madrid Open, Bublik beat world number 15, Ben Shelton on his less favoured surface, clay 3-6, 7-6, 6-4.

[87] At the Lyon Open ATP 250 event in May, Bublik reached the semi-final where he lost to newcomer and eventual champion Giovanni Mpetshi Perricard, 4-6, 5-7[88].

"[91] He made his Davis Cup debut at the 2019 qualifying round in his singles match against Portugal's João Sousa, where he won in three sets to help Kazakhstan advance to the 2019 Finals.

[97] He maintained his momentum against Canada's Vasek Pospisil in their next tie to win in straight sets to bring Kazakhstan to its sixth quarterfinal at the Davis Cup.

[98][91] There, Bublik succumbed to Serbia's Novak Djokovic in straight sets and the team ultimately lost its tie to end their campaign.

[99] In 2022, Representing Kazakhstan at the Davis Cup tie versus Norway, he won both of his matches beating Viktor Durasovic and Casper Ruud.

Against the Netherlands, he lost to Botic van de Zandschulp;[101] however, he won the doubles tie with Aleksandr Nedovyesov beating Wesley Koolhof /Matwé Middelkoop.

[107][108] His unpredictable and capricious game style on court has often caught opponents off-guard through his occasional use of the underarm serve and tendency to add trick shots in his matches.

"[107] In a 2020 interview with L'Équipe, Bublik also stated that he lamented the sport and the financial incentives were what kept him going: "If there was no money, I would stop playing tennis instantly.

Bublik was recorded on television uttering in Russian, "I am sick of giving careers back to disabled people", an apparent reference to Thiem's recent recovery from injuries.

[113][114] Throughout the game, Bublik also received code violation after smashing his racket, he then proceeded to question his team why he kept losing, and said he no longer wanted to travel to the US Open.