Alisa Kleybanova and Anastasia Pavlyuchenkova were the defending champions but Kleybanova did not compete in the Juniors this year.
Donald Young was the defending champion, but did not complete in the Juniors this year.
Hsieh Cheng-peng and Yang Tsung-hua were the defending champions but Yang did not compete. Hsieh partnered with Huang Liang-chi but they lost in the third round to Alexandros-Ferdinandos Georgoudas and Andrei Vasilevski.
Pierre-Hugues Herbert and Kevin Krawietz were the defending champions. However, Herbert was no longer eligible to compete as a Junior. Krawietz competed with Peter Heller and lost in the semifinals to Lewis Burton and George Morgan.
Tímea Babos and Sloane Stephens were the defending champions but were no longer eligible to compete as juniors.
Roger Federer and Olivier Rochus were the defending champions, but they did not compete in the Junior's this year.
George Morgan and Mate Pavić were the defending champions but were no longer eligible to compete as Juniors.
Athanasios "Thanasi" Kokkinakis is an Australian professional tennis player. He has been ranked as high as world No. 69 in singles by the ATP, which he first achieved on 8 June 2015. He has won one ATP Tour title in singles and produced his best major singles performance at the 2015 French Open by reaching the third round. Kokkinakis also has a career-high doubles ranking of world No. 15 which he attained on 21 November 2022 after winning the 2022 Australian Open and reaching the semifinals of 2022 Miami Open with countryman Nick Kyrgios.
Filip Peliwo was the defending champion, but was no longer eligible to compete in junior tennis, and thus could not defend his title.
Barbora Krejčíková and Kateřina Siniaková were the defending champions, however were no longer eligible to compete in junior tennis.
Thanasi Kokkinakis and Nick Kyrgios were the defending champions, but were no longer eligible to compete in junior tennis.
Cara Black and Irina Selyutina were the defending champions, but both players turned 18 years old during the season and, therefore, were not eligible to compete in Juniors.
Jason Stoltenberg and Todd Woodbridge successfully defended their title, defeating David Rikl and Tomáš Zdražila in the final, 6–4, 1–6, 7–5 to win the boys' doubles tennis title at the 1988 Wimbledon Championships.
Guillermo Coria and David Nalbandian were the defending champions, but they did not compete in the Juniors this year.
Frank Dancevic and Giovanni Lapentti were the defending champions, but they did not compete in the Juniors this year.
Gisela Dulko and Ashley Harkleroad were the defending champions, but they did not compete in the Juniors this year.
Florin Mergea and Horia Tecău were the defending champions, but they did not compete in the Juniors this year.
Neal Skupski and Desirae Krawczyk defeated Joe Salisbury and Harriet Dart in the final, 6–2, 7–6(7–1), to win the mixed doubles tennis title at the 2021 Wimbledon Championships. It was Krawczyk's second consecutive major title in mixed doubles, following her success at the French Open.
Matthew Ebden and Max Purcell defeated the defending champions Nikola Mektić and Mate Pavić in the final, 7–6(7–5), 6–7(3–7), 4–6, 6–4, 7–6(10–2) to win the gentlemen's doubles tennis title at the 2022 Wimbledon Championships. It was their first major title as a team, and their second title of the season. They saved a total of eight match points en route to the title, and twice recovered from two sets down, having been taken to five sets in five of the six matches they played.
Rinky Hijikata and Jason Kubler defeated Hugo Nys and Jan Zieliński in the final, 6–4, 7–6(7–4) to win the men's doubles tennis title at the 2023 Australian Open. Awarded a wildcard into the tournament, Hijikata and Kubler saved a match point en route to the title, in their third round match against Tomislav Brkić and Gonzalo Escobar. Nys became the first ever Monegasque player to reach the semifinal and final of a major.
Thanasi Kokkinakis 
Enzo Couacaud 
Stefano Napolitano 
