| Date: | 29 October–4 November |
| Edition: | 4th |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Location: | Canberra, Australia |
| Surface: | Hard |
| Prize Money: | $75,000 (men) $60,000 (women) |
| Champms: |  Jordan Thompson |
| Champmd: |  Evan Hoyt / Wu Tung-lin |
| Champws: | Zoe Hives |
| Champwd: | Ellen Perez / Arina Rodionova |
| After Year: | 2023 |
The 2018 Canberra Tennis International was a professional tennis tournament played on outdoor hard courts. It was the fourth edition of the tournament and was part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit. It took place in Canberra, Australia, on 29 October–4 November 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Australia | ||||
 Japan | Yoshihito Nishioka | 98 | 2 | |
| Australia | Jordan Thompson | 101 | 3 | |
| Australia | Alex Bolt | 140 | 4 | |
| Australia | Marc Polmans | 145 | 5 | |
| Japan | Hiroki Moriya | 191 | 6 | |
| Japan | Yosuke Watanuki | 231 | 7 | |
| Japan | Yasutaka Uchiyama | 232 | 8 |
The following players received a wildcard into the singles main draw:
Jeremy Beale Jacob Grills Luke Saville Aleksandar VukicThe following players received entry from the qualifying draw:
Thomas Fancutt Brydan Klein
Rubin Statham
Francesco VilardoThe following player received entry as a lucky loser:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Australia | Arina Rodionova | 161 | 1 | |
| United Kingdom | Gabriella Taylor | 172 | 2 | |
| Australia | Priscilla Hon | 185 | 3 | |
| Australia | Olivia Rogowska | 192 | 4 | |
| Australia | Jaimee Fourlis | 199 | 5 | |
| Australia | Ellen Perez | 214 | 6 | |
| Australia | Destanee Aiava | 219 | 7 | |
| United Kingdom | Katy Dunne | 228 | 8 |
The following players received a wildcard into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2018 Canberra Tennis International – Men's singles.
Jordan Thompson def. 
Nicola Kuhn 6–1, 5–7, 6–4.See main article: 2018 Canberra Tennis International – Women's singles.
Zoe Hives def. Olivia Rogowska, 6–4, 6–2See main article: 2018 Canberra Tennis International – Men's doubles.
Evan Hoyt / Wu Tung-lin def. Jeremy Beale / Thomas Fancutt 7–6(7–5), 5–7, [10–8].See main article: 2018 Canberra Tennis International – Women's doubles.
Ellen Perez / Arina Rodionova def. Destanee Aiava / Naiktha Bains, 6–7(5–7), 6–3, [10–7]
