Brazil at the 2010 Summer Youth Olympics
participated in the 2010 Summer Youth Olympics in Singapore.
The Brazilian squad consisted of 81 athletes competing in 18 sports: aquatics, athletics, basketball, boxing, canoeing, cycling, equestrian, fencing, gymnastics, handball, judo, modern pentathlon, rowing, sailing, shooting, table tennis, tennis, and triathlon.
Medalists
Athletics
Boys
;Track and Road Events;Field Events
Girls
;Track and Road Events;Field Events
Basketball
GirlsBoxing
;Boys| Athlete | Event | Preliminaries | Semifinals | Final | Rank |
| David Lourenco | Welterweight | W 6–2 | W 2–1 | W 7–3 |
Canoeing
;BoysCycling
;Cross Country| Athlete | Event | Time | Rank | Points |
| William Alexi | Boys’ Cross Country | 1:04:17 | 16 | 70 |
| Mayara Perez | Girls’ Cross Country | -3LAP | 29 | 40 |
;Time Trial
| Athlete | Event | Time | Rank | Points |
| Guilherme Pineyrua | Boys’ Time Trial | 4:24.03 | 24 | 30 |
| Mayara Perez | Girls’ Time Trial | 3:52.18 | 27 | 40 |
;BMX
;Road Race
;Overall
Diving
;Boys;Girls
Equestrian
Fencing
;Group Stage| Athlete | Event | Match 1 | Match 2 | Match 3 | Match 4 | Match 5 | Seed |
| Guilherme Melaragno | Boys’ Épée | W 5–4 | L 4–5 | L 2–5 | L 4–5 | L 4–5 | 10 |
;Knock-Out Stage
Gymnastics
Artistic Gymnastics
;Boys| Athlete | Event | Score | Rank |
| Arthur Mariano | Boys' Vault | 15.400 | 4 |
;Girls
| Athlete | Event | Score | Rank |
| Harumy Freitas | Girls' Vault | 13.425 | 6 |
| Harumy Freitas | Girls' Beam | 13.450 | 5 |
Trampoline
Handball
;Boys;Girls
Judo
;Individual;Team
Modern pentathlon
Rowing
Sailing
;One Person Dinghy;Windsurfing
Shooting
;PistolSwimming
BoysGirls
Mixed
Table tennis
;Individual;Team
Tennis
;Singles;Doubles
Triathlon
;Boys| Athlete | Event | Swim | Trans 1 | Bike | Trans 2 | Run | Total | Rank |
| Iuri Venuto | Individual | 9:30 | 0:28 | 30:22 | 0:20 | 17:27 | 58:07.96 | 22 |
;Mixed
| Athlete | Event | Total Times per Athlete '' | Total Group Time | Rank |
| Mixed Team Relay Americas 3 | 22:30 19:53 23:32 20:39 | 1:26:34.25 | 11 |