2018 US Open – Boys' doubles
| Boys' doubles | |
|---|---|
| 2018 US Open | |
| Champions |  Adrian Andreev  Anton Matusevich | 
| Runners-up |  Emilio Nava  Axel Nefve | 
| Score | 6–4, 2–6, [10–8] | 
Hsu Yu-hsiou and Wu Yibing were the defending champions, but both players were no longer eligible to participate in junior tournaments.
Adrian Andreev and Anton Matusevich won the title, defeating Emilio Nava and Axel Nefve in the final, 6–4, 2–6, [10–8].
Seeds
 Thiago Seyboth Wild / Thiago Seyboth Wild / Tseng Chun-hsin (first round) Tseng Chun-hsin (first round)
 Sebastián Báez / Sebastián Báez / Facundo Díaz Acosta (first round) Facundo Díaz Acosta (first round)
 Hugo Gaston / Hugo Gaston / Clément Tabur (second round) Clément Tabur (second round)
 Aidan McHugh / Aidan McHugh / Timofei Skatov (first round) Timofei Skatov (first round)
 Carlos López Montagud / Carlos López Montagud / Mu Tao (first round) Mu Tao (first round)
 Tristan Boyer / Tristan Boyer / Nick Hardt (second round) Nick Hardt (second round)
 Ondřej Štyler / Ondřej Štyler / Naoki Tajima (first round) Naoki Tajima (first round)
 Filip Cristian Jianu / Filip Cristian Jianu / Deney Wassermann (quarterfinals) Deney Wassermann (quarterfinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
Finals
| Semifinals | Final | ||||||||||||
|  Lorenzo Musetti  Giulio Zeppieri | 6 | 5 | [6] | ||||||||||
|  Adrian Andreev  Anton Matusevich | 4 | 7 | [10] | ||||||||||
|  Adrian Andreev  Anton Matusevich | 6 | 2 | [10] | ||||||||||
|  Emilio Nava  Axel Nefve | 4 | 6 | [8] | ||||||||||
|  Jesper de Jong .svg.png) Damien Wenger | 6 | 4 | [10] | ||||||||||
|  Emilio Nava  Axel Nefve | 3 | 6 | [12] | ||||||||||
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