| Date: | 16–22 July |
| Edition: | 13th (ATP) 10th (ITF) |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Location: | Astana, Kazakhstan |
| Prize Money: | $125,000 (ATP) $80,000 (ITF) |
| Champms: |  Sebastian Ofner |
| Champws: |  Ekaterine Gorgodze |
| Champmd: |  Mikhail Elgin /  Yaraslav Shyla |
| Champwd: |  Berfu Cengiz /  Anna Danilina |
The 2018 President's Cup was a professional tennis tournament played on outdoor hard courts. It was the thirteenth (ATP) and tenth (ITF) editions of the tournament and was part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit. It took place in Astana, Kazakhstan, on 16–22 July 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Russian Federation | Mikhail Youzhny | 102 | 1 | |
| Kazakhstan | Alexander Bublik | 141 | 2 | |
| Austria | Sebastian Ofner | 143 | 3 | |
 Japan | Hiroki Moriya | 213 | 4 | |
| Belarus | Egor Gerasimov | 217 | 5 | |
 Korea, Republic of | Lee Duck-hee | 233 | 6 | |
| Russian Federation | Ivan Nedelko | 242 | 7 | |
| Turkey | Cem İlkel | 245 | 8 |
The following players received wildcards into the singles main draw:
Sagadat Ayap
Farrukh Dustov Timur Khabibulin Aleksandr NedovyesovThe following players received entry from the qualifying draw:
The following players received entry as lucky losers:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Uzbekistan | Sabina Sharipova | 144 | 1 | |
 Czech Republic | Marie Bouzková | 167 | 2 | |
 Serbia | Nina Stojanović | 222 | 3 | |
| Russian Federation | Olga Doroshina | 250 | 4 | |
| Georgia | Ekaterine Gorgodze | 257 | 5 | |
| Uzbekistan | Nigina Abduraimova | 284 | 6 | |
| Russian Federation | Valeria Savinykh | 289 | 7 | |
| Japan | Mai Minokoshi | 293 | 8 |
The following players received a wildcard into the singles main draw:
Anastasia Astakhova Anna Danilina Dariya Detkovskaya
Ng Kwan-yauThe following players received entry from the qualifying draw:
Darya Astakhova Anastasia Frolova Bojana Jovanovski Petrović Ksenia LaskutovaSee main article: 2018 President's Cup (tennis) – Men's singles.
Sebastian Ofner def. Daniel Brands, 7–6(7–5), 6–3See main article: 2018 President's Cup (tennis) – Women's singles.
Ekaterine Gorgodze def. Sabina Sharipova, 6–4, 6–1See main article: 2018 President's Cup (tennis) – Men's doubles.
Mikhail Elgin / Yaraslav Shyla def. 
Arjun Kadhe / Denis Yevseyev, 7–5, 7–6(8–6)See main article: 2018 President's Cup (tennis) – Women's doubles.
Berfu Cengiz / Anna Danilina def. Akgul Amanmuradova / Ekaterine Gorgodze, 3–6, 6–3, [10–7]