| Doubles | |
|---|---|
| 2018 Shymkent Challenger | |
| Champions |  Lorenzo Giustino  Gonçalo Oliveira |
| Runners-up |  Lucas Miedler Sebastian Ofner |
| Final score | 6–2, 7–6(7–4) |
Hans Podlipnik-Castillo and Andrei Vasilevski were the defending champions but chose not to defend their title.
Lorenzo Giustino and Gonçalo Oliveira won the title after defeating Lucas Miedler and Sebastian Ofner 6–2, 7–6(7–4) in the final.
Kevin Krawietz / Andreas Mies (quarterfinals)
Toshihide Matsui / Yasutaka Uchiyama (quarterfinals)
Gerard Granollers / Enrique López Pérez (quarterfinals)
Mikhail Elgin / Ivan Gakhov (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | K Krawietz A Mies | 711 | 6 | ||||||||||||||||||||||||
| WC |  R Khassanov G Lomakin | 69 | 1 | 1 | K Krawietz A Mies | 4 | 65 | ||||||||||||||||||||
 N Čačić  N Serdarušić | 4 | 4 | L Giustino G Oliveira | 6 | 77 | ||||||||||||||||||||||
| L Giustino G Oliveira | 6 | 6 | L Giustino G Oliveira | 6 | 6 | ||||||||||||||||||||||
| 3 | G Granollers E López Pérez | 77 | 6 |  L Grigelis  U Ignatik | 3 | 2 | |||||||||||||||||||||
 M Safwat  A Šetkić | 62 | 1 | 3 | G Granollers E López Pérez | 3 | 4 | |||||||||||||||||||||
| L Grigelis U Ignatik | 6 | 6 | L Grigelis U Ignatik | 6 | 6 | ||||||||||||||||||||||
| WC | T Khabibulin A Nedovyesov | 3 | 4 | L Giustino G Oliveira | 6 | 77 | |||||||||||||||||||||
 G Clezar  A Lawson | 6 | 4 | [10] | L Miedler S Ofner | 2 | 64 | |||||||||||||||||||||
| R Galloway N Lammons | 3 | 6 | [8] | G Clezar A Lawson | 4 | 5 | |||||||||||||||||||||
| L Miedler S Ofner | 7 | 2 | [11] | L Miedler S Ofner | 6 | 7 | |||||||||||||||||||||
| 4 | M Elgin I Gakhov | 5 | 6 | [9] | L Miedler S Ofner | 6 | 6 | ||||||||||||||||||||
 T Chen  R Statham | 1 | 4 | WC |  A Kadhe D Yevseyev | 2 | 4 | |||||||||||||||||||||
| WC | A Kadhe D Yevseyev | 6 | 6 | WC | A Kadhe D Yevseyev | 7 | 6 | ||||||||||||||||||||
| A Pavić F Romboli | 3 | 4 | 2 | T Matsui Y Uchiyama | 5 | 3 | |||||||||||||||||||||
| 2 | T Matsui Y Uchiyama | 6 | 6 | ||||||||||||||||||||||||
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