The 2019 Rogers Cup were outdoor hard court tennis tournaments played from August 5–11, 2019, as part of the 2019 US Open Series. It was the 130th edition of the men's Canadian Open, a Masters 1000 event on the 2019 ATP Tour at IGA Stadium in Montreal, and the 118th edition of the women's tournament, a Premier 5 event of the 2019 WTA Tour played at Aviva Centre in Toronto.
The following are the seeded players. Seedings are based on ATP rankings as of July 29, 2019. Rankings and points before are as of August 5, 2019.
† The player did not qualify for the tournament in 2018. Accordingly, points for his 18th best result are deducted instead.
The following players would have been seeded, but they withdrew from the event.
The following players received wild cards into the main singles draw:
The following player received entry as special exempt:
The following players received entry from the singles qualifying draw:
The following player received entry as an alternate:
The following player received entry as a lucky loser:
Kevin Anderson → replaced by 
Hubert Hurkacz
Matteo Berrettini → replaced by .svg/1280px-Flag_of_Australia_(converted).svg.png){kind=small}
John Millman
Pablo Cuevas → replaced by 
Grigor Dimitrov
Juan Martín del Potro → replaced by Jordan Thompson
Novak Djokovic → replaced by 
Mikhail Kukushkin.svg/1280px-Flag_of_Switzerland_(Pantone).svg.png){kind=small}
Roger Federer → replaced by 
Richard Gasquet
Frances Tiafoe → replaced by 
Cameron Norrie
Fernando Verdasco → replaced by 
Márton FucsovicsThe following pairs received wildcards into the doubles main draw:
.svg/1280px-Flag_of_Canada_(Pantone).svg.png){kind=small}
Félix Auger-Aliassime / Vasek Pospisil Feliciano López / Andy Murray Peter Polansky / Brayden SchnurThe following players received wild cards into the main singles draw:
The following players received entry from the singles qualifying draw:
Ekaterina Alexandrova
Marie Bouzková Jennifer Brady Francesca Di Lorenzo
Misaki Doi
Polona Hercog
Tatjana Maria Anastasia Potapova Alison Riske Iga Świątek Ajla Tomljanović
Wang XiyuThe following player received entry as an alternate:
The following player received entry as a lucky loser:
Amanda Anisimova → replaced by Anastasia Pavlyuchenkova Petra Kvitová → replaced by Venus Williams Garbiñe Muguruza → replaced by Zheng Saisai
Lesia Tsurenko → replaced by Zhang Shuai Wang Qiang → replaced by Camila Giorgi Markéta Vondroušová → replaced by 
Victoria Azarenka
Simona Halep (left lower leg injury) Tatjana Maria (left abdominal injury) Carla Suárez Navarro (right hip injury) Ajla Tomljanović (left abdominal injury) Serena Williams (upper back injury)The following pairs received wildcards into the doubles main draw:
Françoise Abanda / Carson Branstine Eugenie Bouchard / Sharon Fichman Leylah Annie Fernandez / Simona Halep Yang Zhaoxuan (viral illness) Rafael Nadal defeated Daniil Medvedev, 6–3, 6–0 Bianca Andreescu defeated Serena Williams, 3–1, retired Marcel Granollers / Horacio Zeballos defeated 
Robin Haase / Wesley Koolhof, 7–5, 7–5 Barbora Krejčíková / Kateřina Siniaková defeated Anna-Lena Grönefeld / Demi Schuurs, 7–5, 6–0