| Singles | |
|---|---|
| 2025 Oeiras Indoors | |
| 2024 Champion |  Leandro Riedi |
Leandro Riedi was the defending champion [1] but chose not to defend his title.
| Singles | |
|---|---|
| 2025 Oeiras Indoors | |
| 2024 Champion | Leandro Riedi |
Leandro Riedi was the defending champion [1] but chose not to defend his title.
| Semifinals | Final | ||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 |  H Medjedovic | ||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
| WC |  F Ferreira Silva | ||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
 Daniel Mérida | |||||||||||||||||||||||||||
| WC | D Vale | ||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
| 7 |  Z Piros | ||||||||||||||||||||||||||
| 3 |  B Zhukayev | ||||||||||||||||||||||||||
 Micah Braswell | |||||||||||||||||||||||||||
| G Elias | |||||||||||||||||||||||||||
| D Rincón | |||||||||||||||||||||||||||
| WC | Pedro Araújo | ||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
 MH Rehberg | |||||||||||||||||||||||||||
| 6 |  M Soto | ||||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | Pol Martín Tiffon | ||||||||||||||||||||||||||
| R Molleker | |||||||||||||||||||||||||||
 R Bertrand | |||||||||||||||||||||||||||
 Karue Sell | |||||||||||||||||||||||||||
 L Giustino | |||||||||||||||||||||||||||
 E Kırkın | |||||||||||||||||||||||||||
| Antoine Cornut-Chauvinc | |||||||||||||||||||||||||||
| 4 | D Yevseyev | ||||||||||||||||||||||||||
| 5 |  L Draxl | ||||||||||||||||||||||||||
| JJ Wolf | |||||||||||||||||||||||||||
| Samuel Vincent Ruggeri | |||||||||||||||||||||||||||
 M Dodig | |||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
| B Zapata Miralles | |||||||||||||||||||||||||||
| Q | |||||||||||||||||||||||||||
| 2 | A Ritschard | ||||||||||||||||||||||||||
David Ionel and Leandro Riedi won the boys' doubles tennis title at the 2020 Australian Open, defeating Mikołaj Lorens and Kārlis Ozoliņš in the final, 6–7(8–10), 7–5, [10–4].
Dominic Stricker won the title, defeating Leandro Riedi in an all-Swiss final, 6–2, 6–4.
Matheus Pucinelli de Almeida and Thiago Agustín Tirante were the defending champions, but both players were no longer eligible to participate in junior events.
Bruno Kuzuhara and Coleman Wong defeated Alex Michelsen and Adolfo Daniel Vallejo in the final, 6–3, 7–6(7–3) to win the boys' doubles title at the 2022 Australian Open. Wong became the first Hongkonger win an Australian Open title, and the first Hongkonger to win two titles at majors, having previously won the junior doubles at the 2021 US Open.
Dominic Stricker was the defending champion but lost in the first round to Jurij Rodionov.
Andre Begemann and Andrea Vavassori were the defending champions but chose not to defend their title.
Sadio Doumbia and Fabien Reboul were the two-time defending champions but lost in the final to Jesper de Jong and Bart Stevens.
Robert Galloway and Roberto Maytín were the defending champions but chose not to defend their title.
Alex Molčan was the defending champion but chose not to defend his title.
Ugo Humbert was the defending champion but chose not to defend his title.
Jordan Thompson was the defending champion but chose not to defend his title.
Jurij Rodionov was the defending champion but chose not to defend his title.
Michael Mmoh was the defending champion but chose not to defend his title.
Emilio Gómez was the defending champion but chose not to defend his title.
Billy Harris and Kelsey Stevenson were the defending champions but lost in the quarterfinals to Gabriel Diallo and Leandro Riedi.
Leandro Riedi and Valentin Vacherot were the defending champions but chose not to defend their title.
Leandro Riedi was the defending champion but lost in the first round to Damir Džumhur.
Christopher O'Connell was the defending champion but chose not to defend his title.
Maks Kaśnikowski was the defending champion but lost in the second round to Valentin Royer.
Alexander Shevchenko was the defending champion but chose not to defend his title.