Medalists
| Gold | Silver | Bronze |
| Diego Hidalgo Emilio Gómez  Ecuador | Jorge Panta Juan Pablo Varillas  Peru | Cristian Rodríguez Eduardo Struvay  Colombia |
| Men's doubles | |
|---|---|
| Tennis at the 2018 South American Games |
The men's doubles event at the 2018 South American Games was held from 29 May to 2 June.
| Gold | Silver | Bronze |
| Diego Hidalgo Emilio Gómez Ecuador | Jorge Panta Juan Pablo Varillas Peru | Cristian Rodríguez Eduardo Struvay Colombia |
| 1st round | 2nd round | Semifinals | Finals | ||||||||||||||||||||||||
| 1 |  LD Martínez R Maytín | 7 | 4 | [9] | |||||||||||||||||||||||
| D Hidalgo E Gómez | 5 | 6 | [11] | ||||||||||||||||||||||||
| D Hidalgo E Gómez | 6 | 6 | |||||||||||||||||||||||||
| 4 | C Rodríguez E Struvay | 4 | 4 | ||||||||||||||||||||||||
| 4 | C Rodríguez E Struvay | 6 | 4 | [10] | |||||||||||||||||||||||
 B Arias L Chávez | 6 | 77 | B Arias L Chávez | 4 | 6 | [6] | |||||||||||||||||||||
 F Roncadelli W Wibmer | 4 | 63 | D Hidalgo E Gómez | 6 | 6 | ||||||||||||||||||||||
| 3 | J Panta JP Varillas | 2 | 3 | ||||||||||||||||||||||||
 A Riquelme F Cerúndolo | 4 | 4 | |||||||||||||||||||||||||
| 3 | J Panta JP Varillas | 6 | 6 | ||||||||||||||||||||||||
| 3 | J Panta JP Varillas | 6 | 6 | Third place | |||||||||||||||||||||||
| 2 |  A Tabilo MT Barrios Vera | 3 | 4 | ||||||||||||||||||||||||
 G Issa Y Bergen | 1 | 1 | 4 | C Rodríguez E Struvay | 58 | 4 | |||||||||||||||||||||
| 2 | A Tabilo MT Barrios Vera | 6 | 6 | 2 | A Tabilo MT Barrios Vera | 46 | 2 | ||||||||||||||||||||
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