ATP Rotterdam 02/15 14:30 29 [8] Alex De Minaur v Felix Auger Aliassime [6] 6-3,6-2
ATP Rotterdam 02/14 18:30 28 [10] Alexander Bublik v Felix Auger Aliassime [6] 1-6,2-6
ATP Rotterdam 02/13 18:30 27 [27] Tallon Griekspoor v Felix Auger Aliassime [6] 6-7,2-6
ATP Rotterdam 02/12 18:30 26 [79] Hamad Medjedovic v Felix Auger Aliassime [6] 4-6,4-6
ATP Rotterdam 02/11 18:30 25 [50] Alexei Popyrin v Felix Auger Aliassime [6] 5-7,3-6
ATP Montpellier 02/08 14:00 29 [8] Felix Auger Aliassime v Adrian Mannarino [70] 6-3,7-6
ATP Montpellier 02/07 16:00 28 [8] Felix Auger Aliassime v Titouan Droguet [150] 6-4,6-7,6-1
ATP Montpellier 02/06 17:30 27 [8] Felix Auger Aliassime v Arthur Fils [42] 6-4,6-2
ATP Montpellier 02/05 17:30 26 [8] Felix Auger Aliassime v Stan Wawrinka [113] 6-4,7-6
Australian Open 01/19 00:00 23 [46] Nuno Borges v Felix Auger Aliassime [8] Retired
United Cup 01/05 23:30 - [5] Felix Auger Aliassime v Zizou Bergs [42] 4-6,2-6
United Cup 01/04 08:30 - [5] Felix Auger Aliassime v Zhizhen Zhang [410] 6-4,6-4
ATP Finals 11/15 19:30 28 [1] Carlos Alcaraz v Felix Auger Aliassime [8] 6-2,6-4
ATP Finals 11/14 19:30 - [3] Alexander Zverev v Felix Auger Aliassime [8] 4-6,6-7
ATP Finals 11/12 13:00 - [5] Ben Shelton v Felix Auger Aliassime [8] 6-4,6-7,5-7
ATP Finals 11/10 19:30 - [2] Jannik Sinner v Felix Auger Aliassime [8] 7-5,6-1
ATP Paris 11/02 14:00 29 [10] Felix Auger Aliassime v Jannik Sinner [2] 4-6,6-7
ATP Paris 11/01 13:30 28 [10] Felix Auger Aliassime v Alexander Bublik [16] 7-6,6-4
ATP Paris 10/31 13:00 27 [40] Valentin Vacherot v Felix Auger Aliassime [10] 2-6,2-6
ATP Paris 10/30 11:55 26 [10] Felix Auger Aliassime v Daniel Altmaier [50] 3-6,6-3,6-2
ATP Paris 10/29 11:40 25 [10] Felix Auger Aliassime v Alexandre Muller [44] 5-7,7-6,7-6
ATP Paris 10/28 10:00 24 [10] Felix Auger Aliassime v Francisco Comesana [68] 6-7,6-3,6-3
ATP Basel 10/24 12:00 27 [12] Felix Auger Aliassime v Jaume Munar [42] Retired
ATP Basel 10/23 12:00 26 [12] Felix Auger Aliassime v Marin Cilic [89] 7-6,7-6
ATP Basel 10/22 13:35 25 [12] Felix Auger Aliassime v Gabriel Diallo [41] 6-2,7-5
ATP Brussels 10/19 14:30 29 [17] Jiri Lehecka v Felix Auger Aliassime [13] 6-7,7-6,2-6
ATP Brussels 10/18 15:30 28 [90] Ciar Pringle v Felix Auger Aliassime [13] 6-7,4-6
ATP Brussels 10/17 16:30 27 [111] Eliot Spizzirri v Felix Auger Aliassime [13] 2-6,6-7
ATP Brussels 10/16 13:30 26 [67] Damir Dzumhur v Felix Auger Aliassime [13] 6-7,6-4,6-7
ATP Shanghai 10/10 07:00 27 [54] Arthur Rinderknech v Felix Auger Aliassime [13] 6-3,6-4

Félix Auger-Aliassime (French pronunciation: [feliks oʒe aljasim]; born August 8, 2000) is a Canadian professional tennis player. He has been ranked by the Association of Tennis Professionals (ATP) as high as world No. 5 in singles, which he achieved on 7 November 2025, and No. 60 in doubles, attained on 1 November 2021. He is the second-highest-ranked Canadian man in ATP rankings history and tied for third-highest-ranked Canadian player in history. Auger-Aliassime was selected as the 2022 Canadian Press athlete of the year.

Auger-Aliassime has won ten ATP Tour titles combined, nine in singles and one in doubles. He was also part of Canada's winning squad in the 2022 ATP Cup as well as the 2022 Davis Cup Finals. He won the bronze in mixed doubles with Gabriela Dabrowski at the 2024 Paris Olympics.

Auger-Aliassime began competing on the professional tour at a young age. On the second-tier ATP Challenger Tour, he is the youngest player to win a main draw match at 14 years and 11 months old, and is one of seven players to win a Challenger title by the age of 16. He is the second-youngest to win multiple Challenger titles at 17 years and one month, and the youngest player to defend a Challenger title at 17 years and ten months. Auger-Aliassime had a successful junior career, reaching No. 2 in the world and winning the 2016 US Open boys' singles title. He also won the previous year's boys' doubles title at the 2015 US Open with compatriot Denis Shapovalov.

On the ATP Tour, Auger-Aliassime made his top 100 and top 25 debuts at age 18 in a year highlighted by his first ATP final in February 2019 at the Rio Open, an ATP 500 event. He reached three ATP finals in 2019, another three in 2020, and two finals in 2021, a total of eight consecutive runner-ups out of eight ATP finals as well as the semifinals at the 2021 US Open. He reached another major semifinal at the same major in 2025. Auger-Aliassime 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.