| Date: | 1–7 January |
| Edition: | 1st |
| Surface: | Hard |
| Location: | Playford, Australia |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Prize Money: | $75,000 (ATP) $25,000 (ITF) |
| Champms: |  Jason Kubler |
| Champmd: |  Mackenzie McDonald / Tommy Paul |
| Champws: | Zoe Hives |
| Champwd: | Dalila Jakupović /  Irina Khromacheva |
The 2018 City of Playford Tennis International was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit. It took place in Playford, Australia between 1 and 7 January 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Russian Federation | Daniil Medvedev | 65 | 1 | |
| Bjorn Fratangelo | 110 | 2 | ||
| Henri Laaksonen | 121 | 3 | ||
 Ukraine | Sergiy Stakhovsky | 122 | 4 | |
| Oscar Otte | 131 | 5 | ||
 Slovakia | Norbert Gombos | 132 | 6 | |
 Lithuania | Ričardas Berankis | 136 | 7 | |
 Belarus | Uladzimir Ignatik | 145 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 China | Zhu Lin | 114 | 1 | |
| Jil Teichmann | 141 | 2 | ||
| Russian Federation | Anna Kalinskaya | 159 | 3 | |
 Turkey | Başak Eraydın | 174 | 4 | |
| Dalila Jakupović | 175 | 5 | ||
 Czech Republic | Marie Bouzková | 176 | 6 | |
| Russian Federation | Irina Khromacheva | 187 | 7 | |
 Canada | Bianca Andreescu | 189 | 8 |
The following players received wildcards into the singles main draw:
Michaela Haet Kaylah McPhee Ivana Popovic Alexandra WaltersThe following players received entry from the qualifying draw:
Alison Bai Alexandra Bozovic
Misa Eguchi Jennifer Elie Allie Kiick Marta Kostyuk Belinda WoolcockSee main article: 2018 City of Playford Tennis International – Men's singles.
Jason Kubler def. Brayden Schnur, 6–4, 6–2 Zoe Hives def. Alexandra Bozovic, 6–4, 5–7, 7–6(7–4)See main article: 2018 City of Playford Tennis International – Men's doubles.
Mackenzie McDonald / Tommy Paul def. Maverick Banes / Jason Kubler, 7–6(7–4), 6–4. Irina Khromacheva def. Junri Namigata / Erika Sema, 2–6, 7–5, [10–5]