Félix Auger-Aliassime (French pronunciation: [feliks oʒe aljasim];[6] born August 8, 2000) is a Canadian professional tennis player.

He is the one of only three players (alongside Novak Djokovic and John Isner) to force Rafael Nadal into a five-set match at the French Open.Auger-Aliassime was born in Montreal and raised in L'Ancienne-Lorette, a suburb of Quebec City.

[17] In October 2015, Auger-Aliassime and compatriots Denis Shapovalov and Benjamin Sigouin won the Junior Davis Cup title, the first time in history for Canada.

[18] In December 2015 at the Eddie Herr International Tennis Championship, he won his second G1 singles title after defeating Alex de Minaur in the final.

[19] At the junior event of the French Open in June 2016, he reached his first Grand Slam singles final where he was defeated by Geoffrey Blancaneaux in three sets, despite holding a championship point.

[28] In November 2016, he won his first pro title with a victory over Juan Manuel Benitez Chavarriaga at the ITF Futures in Birmingham.

[30] In January, Auger-Aliassime reached the final of the ITF Futures in Plantation, but lost to Roberto Cid Subervi in three sets.

[43] At age 18, Auger-Aliassime became the youngest-ever ATP 500 finalist with his win over Pablo Cuevas (6–3, 3–6, 6–3) to reach the Rio Open title match.

[46] At the Miami Open, Auger-Aliassime beat Nikoloz Basilashvili in the fourth round and Borna Ćorić in the quarterfinals to become the youngest semifinalist in the tournament's history.

At the Lyon Open, he worked his way into his second ATP final, by beating John Millman, Steve Johnson, and Nikoloz Basilashvili, the No.

In the Mercedes Cup he made it to his third final, by defeating experienced players like Ernests Gulbis, Gilles Simon, and Dustin Brown.

At Queen's Club, Auger-Aliassime defeated Grigor Dimitrov and Nick Kyrgios, both matches were played on the same day as the tournament program was delayed by rain earlier during the week.

At the Halle Open, he reached the semifinals by defeating 10-time tournament champion and fifth seed, Roger Federer, in the second round[53] to secure his fourth top-10 victory (4-15).

[55] In the same tournament in doubles, he reached the final partnering Hubert Hurkacz but lost to third seeded German Kevin Krawietz and Romanian Horia Tecău.

At the rescheduled 2020 Tokyo Olympics, Auger-Aliassime was set to play defending gold medalist Andy Murray in the first round.

However, Murray withdrew from singles due to a calf injury,[58] and Auger-Aliassime was upset by his replacement, 190th ranked Australian Max Purcell.

[59] At the Washington Open, seeded second, Auger-Aliassime was upset by 130th ranked American wildcard player Jenson Brooksby in the third round.

[61] At the US Open, Auger-Aliassime reached his maiden major semifinals following wins over 18th-seed Roberto Bautista Agut, Frances Tiafoe, and Carlos Alcaraz (the latter via a retirement).

After wins against Egor Gerasimov, Andy Murray, Cameron Norrie, and Andrey Rublev, Auger-Aliassime faced top seed Stefanos Tsitsipas in the final.

[72] At the French Open, Auger-Aliassime won his first match at this tournament and came back from two sets to love down for the first time in his career to beat Juan Pablo Varillas in the first round.

He became the third player in the season to win an ATP Tour title without dropping a service game, the other two being Taylor Fritz and Nick Kyrgios.

[85][86] At the 2022 ATP Finals, Auger-Aliassime lost to Taylor Fritz in three sets after defeating Rafael Nadal in an earlier group stage match.

At the Australian Open, he reached the fourth round after defeating fellow Canadian veteran Vasek Pospisil, Alex Molčan, and Francisco Cerúndolo before losing to Jiří Lehečka in four sets.

He reached the quarterfinals following wins over Lorenzo Sonego and Grégoire Barrère but fell to eventual champion Daniil Medvedev in straight sets.

[91] Due to this injury layoff, he entered the 2023 Wimbledon Championships without having played a grass-court match during the season,[92] and lost to lucky loser Michael Mmoh.

[96] As a result he became the first Canadian man to reach a clay Masters 1000 final and returned to the top 20 in the rankings for the first time since October 2023.

[104] Auger-Aliassime started the season by winning the Adelaide International to secure his sixth ATP Tour title and first on outdoor hardcourts, defeating Sebastian Korda in the final.

[105][106] In February, he overcame qualifier Aleksandar Kovacevic in the final at the Open Occitanie in Montpellier, France, to claim his second title of the season and seventh of his career.

[110] He partnered with BNP Paribas in 2020 to create #FAAPointsForChange, a program that benefits children in the Kara region of Togo, his father's native land.

[111] He chose to continue that work during November 2024, forgoing being part of Team Canada for the 2024 Davis Cup final, and was replaced by Milos Raonic.