| Boys' doubles | |
|---|---|
| 2017 US Open | |
| Champions |  Hsu Yu-hsiou  Wu Yibing |
| Runners-up |  Toru Horie Yuta Shimizu |
| Score | 6–4, 5–7, [11–9] |
Juan Carlos Aguilar and Felipe Meligeni Alves were the defending champions, but both players were ineligible to participate.
Hsu Yu-hsiou and Wu Yibing won the title, defeating Toru Horie and Yuta Shimizu in the final, 6–4, 5–7, [11–9].
Hsu Yu-hsiou / Wu Yibing (champions)
Jurij Rodionov / 
Michael Vrbenský (second round)
Trent Bryde / 
Duarte Vale (semifinals) Oliver Crawford / Patrick Kypson (second round)
Sebastián Báez / 
Thiago Seyboth Wild (semifinals) Axel Geller / Alexandre Rotsaert (quarterfinals)
Yshai Oliel / 
Alexey Zakharov (second round) Sebastian Korda / 
Nicolás Mejía (first round)| Semifinals | Final | ||||||||||||
| 1 | Hsu Yu-hsiou Wu Yibing | 6 | 6 | ||||||||||
| 5 | Sebastián Báez Thiago Seyboth Wild | 4 | 1 | ||||||||||
| 1 | Hsu Yu-hsiou Wu Yibing | 6 | 5 | [11] | |||||||||
| Toru Horie Yuta Shimizu | 4 | 7 | [9] | ||||||||||
| 3 | Trent Bryde Duarte Vale | 2 | 65 | ||||||||||
| Toru Horie Yuta Shimizu | 6 | 77 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Hsu Yu-hsiou Wu Yibing | 6 | 7 | ||||||||||||||||||||||||
 Park Ui-sung Naoki Tajima | 3 | 5 | 1 | Y-h Hsu Y Wu | 6 | 7 | |||||||||||||||||||||
| WC | Ryan Goetz Axel Nefve | 6 | 6 | WC | R Goetz A Nefve | 2 | 5 | ||||||||||||||||||||
Gabriel Décamps  Alan Fernando Rubio Fierros | 3 | 4 | 1 | Y-h Hsu Y Wu | 4 | 6 | [10] | ||||||||||||||||||||
 Francesco Forti  Aidan McHugh | 6 | 6 | 6 | A Geller A Rotsaert | 6 | 3 | [6] | ||||||||||||||||||||
| Juan Pablo Grassi Mazzuchi Thiago Agustín Tirante | 3 | 3 | F Forti A McHugh | 2 | 6 | [8] | |||||||||||||||||||||
| Jack Draper George Loffhagen | 5 | 1 | 6 | A Geller A Rotsaert | 6 | 3 | [10] | ||||||||||||||||||||
| 6 | Axel Geller Alexandre Rotsaert | 7 | 6 | 1 | Y-h Hsu Y Wu | 6 | 6 | ||||||||||||||||||||
| 4 | Oliver Crawford Patrick Kypson | 4 | 7 | [10] | 5 | S Báez T Seyboth Wild | 4 | 1 | |||||||||||||||||||
 Nick Hardt Sergio Luis Hernández Ramírez | 6 | 5 | [8] | 4 | O Crawford P Kypson | 3 | 3 | ||||||||||||||||||||
 Dan Added  Zizou Bergs | 6 | 1 | [10] | D Added Z Bergs | 6 | 6 | |||||||||||||||||||||
| Vasil Kirkov Ondřej Štyler | 2 | 6 | [7] | D Added Z Bergs | 6 | 66 | [8] | ||||||||||||||||||||
| Cosntantin Bittoun Kouzmine Gianni Ross | 3 | 3 | 5 | S Báez T Seyboth Wild | 3 | 78 | [10] | ||||||||||||||||||||
| Tomáš Macháč Timofey Skatov | 6 | 6 | T Macháč T Skatov | 4 | 6 | [10] | |||||||||||||||||||||
| Sam Riffice Danny Thomas | 6 | 66 | [9] | 5 | S Báez T Seyboth Wild | 6 | 4 | [12] | |||||||||||||||||||
| 5 | Sebastián Báez Thiago Seyboth Wild | 1 | 78 | [11] | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | Sebastian Korda Nicolás Mejía | 4 | 5 | ||||||||||||||||||||||||
 Jesper de Jong Ryan Nijboer | 6 | 7 | J de Jong R Nijboer | 77 | 2 | [12] | |||||||||||||||||||||
 Siddhant Banthia Shinji Hazawa | 3 | 6 | [11] | S Banthia S Hazawa | 62 | 6 | [10] | ||||||||||||||||||||
| WC | Lukas Greif Govind Nanda | 6 | 3 | [9] | J de Jong R Nijboer | 2 | 4 | ||||||||||||||||||||
| Brian Cernoch Andrew Fenty | 4 | 6 | [9] | 3 | T Bryde D Vale | 6 | 6 | ||||||||||||||||||||
 Simon Carr  Emil Ruusuvuori | 6 | 4 | [11] | S Carr E Ruusuvuori | 2 | 1 | |||||||||||||||||||||
 Mohamed Ali Bellalouna Hugo Gaston | 1 | 4 | 3 | T Bryde D Vale | 6 | 6 | |||||||||||||||||||||
| 3 | Trent Bryde Duarte Vale | 6 | 6 | 3 | T Bryde D Vale | 2 | 65 | ||||||||||||||||||||
| 7 | Yshai Oliel Alexey Zakharov | 6 | 7 | T Horie Y Shimizu | 6 | 77 | |||||||||||||||||||||
| Igor Gimenez Matheus Pucinelli de Almeida | 4 | 5 | 7 | Y Oliel A Zakharov | 2 | 4 | |||||||||||||||||||||
| WC | Brian Shi Sangeet Sridhar | 1 | 4 | A Ayeni J Paul | 6 | 6 | |||||||||||||||||||||
| Alafia Ayeni Jakub Paul | 6 | 6 | A Ayeni J Paul | 2 | 67 | ||||||||||||||||||||||
 Menelaos Efstathiou  Marko Miladinović | 4 | 3 | T Horie Y Shimizu | 6 | 79 | ||||||||||||||||||||||
| Toru Horie Yuta Shimizu | 6 | 6 | T Horie Y Shimizu | 6 | 7 | ||||||||||||||||||||||
| WC | William Grant Tyler Zink | 4 | 63 | 2 | J Rodionov M Vrbenský | 1 | 5 | ||||||||||||||||||||
| 2 | Jurij Rodionov Michael Vrbenský | 6 | 77 | ||||||||||||||||||||||||
Oliver Anderson was the defending champion, but was no longer eligible to participate.
Alex de Minaur and Blake Ellis were the defending champions, but both players chose not to participate.
Geoffrey Blancaneaux was the defending champion, but chose to participate in men's singles qualifying instead and lost to Maxime Janvier in the first round.
Nicola Kuhn and Zsombor Piros won the boys' doubles tennis title at the 2017 French Open, defeating Vasil Kirkov and Danny Thomas in the final, 6–4, 6–4.
Denis Shapovalov was the defending champion but chose to compete in the gentlemen's singles instead. He lost to Jerzy Janowicz in the first round.
Kenneth Raisma and Stefanos Tsitsipas were the defending champions but both players were no longer eligible to participate in junior events.
Félix Auger-Aliassime was the defending champion, but chose not to participate.
Hugo Gaston and Clément Tabur won the boys' doubles tennis title at the 2018 Australian Open, defeating Rudolf Molleker and Henri Squire in the final, 6–2, 6–2.
Axel Geller and Hsu Yu-hsiou were the defending champions, but both players were ineligible to participate in junior events.
Wu Yibing was the defending champion, but was no longer eligible to participate in junior tournaments.
Hsu Yu-hsiou and Wu Yibing were the defending champions, but both players were no longer eligible to participate in junior tournaments.
Andrey Golubev and Aleksandr Nedovyesov were the defending champions but chose not to defend their title.
Hsu Yu-hsiou and Benjamin Lock were the defending champions and successfully defended their title, defeating Oleksii Krutykh and Grigoriy Lomakin 6–3, 6–4 in the final.
Denys Molchanov and Aleksandr Nedovyesov were the defending champions but chose not to defend their title.
Riccardo Bonadio and Giovanni Fonio were the defending champions but withdrew from the tournament before their quarterfinal match.
Hsu Yu-hsiou and Benjamin Lock were the defending champions but only Lock chose to defend his title, partnering Grigoriy Lomakin. Lock lost in the semifinals to Andrew Paulson and David Poljak.
This was the first edition of the tournament since 2013.
Yūichi Sugita was the defending champion but lost in the second round to Colin Sinclair.
Nam Ji-sung and Song Min-kyu were the defending champions but chose not to defend their title.
Stuart Parker was the defending champion but lost in the qualifying competition to Giovanni Fonio.