| Doubles | |
|---|---|
| 2018 Canberra Challenger | |
| Champions |  Jonathan Erlich  Divij Sharan |
| Runners-up |  Hans Podlipnik-Castillo  Andrei Vasilevski |
| Final score | 7–6(7–1), 6–2 |
Andre Begemann and Jan-Lennard Struff were the defending champions but chose not to defend their title.
Jonathan Erlich and Divij Sharan won the title after defeating Hans Podlipnik-Castillo and Andrei Vasilevski 7–6(7–1), 6–2 in the final.
Hans Podlipnik-Castillo / Andrei Vasilevski (final) Jonathan Erlich / Divij Sharan (champions)
Adil Shamasdin / 
Neal Skupski (first round)
Steven de Waard / 
Ben McLachlan (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | H Podlipnik-Castillo A Vasilevski | 711 | 6 | ||||||||||||||||||||||||
 E Benchetrit G Blancaneaux | 69 | 3 | 1 | H Podlipnik-Castillo A Vasilevski | 2 | ||||||||||||||||||||||
| H Grenier M Janvier | 77 | 6 | H Grenier M Janvier | 1r | |||||||||||||||||||||||
 N Lammons A Lawson | 63 | 4 | 1 | H Podlipnik-Castillo A Vasilevski | 6 | 77 | |||||||||||||||||||||
| 4 | S de Waard B McLachlan | 6 | 6 | 4 | S de Waard B McLachlan | 4 | 65 | ||||||||||||||||||||
| D Propoggia S Puodziunas | 4 | 2 | 4 | S de Waard B McLachlan | 6 | 77 | |||||||||||||||||||||
| WC | Alexander Crnokrak M Romios | 5 | 0 | J Chaplin L Saville | 4 | 64 | |||||||||||||||||||||
| Jarryd Chaplin L Saville | 7 | 6 | 1 | H Podlipnik-Castillo A Vasilevski | 61 | 2 | |||||||||||||||||||||
| S Bangoura N Pasha | w/o | 2 | J Erlich D Sharan | 77 | 6 | ||||||||||||||||||||||
H Nys  T Pütz | S Bangoura N Pasha | 6 | 4 | [10] | |||||||||||||||||||||||
 Z Li Yo Watanuki | 4 | 77 | [10] | Z Li Yo Watanuki | 4 | 6 | [12] | ||||||||||||||||||||
| 3 | A Shamasdin N Skupski | 6 | 65 | [7] | Z Li Yo Watanuki | 4 | 77 | [4] | |||||||||||||||||||
 A Seppi Gavin van Peperzeel | w/o | 2 | J Erlich D Sharan | 6 | 65 | [10] | |||||||||||||||||||||
| WC | H Bourchier A Harris | A Seppi G van Peperzeel | 4 | 3 | |||||||||||||||||||||||
| WC | J Beale T Fancutt | 3 | 1 | 2 | J Erlich D Sharan | 6 | 6 | ||||||||||||||||||||
| 2 | J Erlich D Sharan | 6 | 6 | ||||||||||||||||||||||||
Bai Yan and Riccardo Ghedin were the defending champions but chose to defend their title with different partners. Bai partnered Wu Di but lost in the quarterfinals to Hans Podlipnik-Castillo and Andrei Vasilevski. Ghedin partnered Quentin Halys but lost in the first round to Bai and Wu.
Denis Matsukevich and Andrei Vasilevski were the defending champions but chose to defend their title with different partners. Matsukevich partnered Riccardo Ghedin but lost in the quarterfinals to Laurynas Grigelis and Zdeněk Kolář. Vasilevski partnered Hans Podlipnik-Castillo but lost in the semifinals to Prajnesh Gunneswaran and Vishnu Vardhan.
This was the first edition of the tournament.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but Koolhof chose to compete in Los Cabos instead. Middelkoop played alongside Julian Knowle, but lost in the semifinals to Hans Podlipnik-Castillo and Andrei Vasilevski.
Sergey Betov and Ilya Ivashka were the defending champions but only Ivashka chose to defend his title, partnering Aldin Šetkić. Ivashka lost in the semifinals to Lukáš Rosol and Franko Škugor.
Sadio Doumbia and Calvin Hemery were the defending champions but chose not to defend their title.
Mikhail Elgin and Denis Istomin were the defending champions but lost in the first round to James Cerretani and Marc Polmans.
Juan Sebastián Cabal and Robert Farah were the defending champions but Farah chose not to participate this year. Cabal played alongside Denys Molchanov, but lost in the semifinals to Max Mirnyi and Philipp Oswald.
Marcel Granollers and Jack Sock were the defending champions, but chose not to participate together this year. Granollers played alongside Ivan Dodig and successfully defended the title, defeating Fabrice Martin and Édouard Roger-Vasselin in the final, 7–5, 7–6(8–6). Sock teamed up with Nicholas Monroe, but lost to Dodig and Granollers in the semifinals.
Ken and Neal Skupski were the defending champions and successfully defended their title, defeating Sander Arends and Antonio Šančić 5–7, 6–3, [10–8] in the final.
Rohan Bopanna and Jeevan Nedunchezhiyan were the defending champions, but lost in the quarterfinals to Pierre-Hugues Herbert and Gilles Simon.
The 2018 Canberra Challenger was a professional tennis tournament played on outdoor hard courts. It was the third edition of the tournament which was a part of the 2018 ATP Challenger Tour. It took place in Canberra, Australia between 8 and 13 January 2018.
Hans Podlipnik-Castillo and Andrei Vasilevski were the defending champions but chose not to defend their title.
Roman Jebavý and Jiří Veselý were the defending champions, but Veselý chose not to participate this year. Jebavý played alongside Florin Mergea, but lost in the first round to Dominic Inglot and Robert Lindstedt.
Hans Podlipnik Castillo and Andrei Vasilevski were the defending champions but only Vasilevski chose to defend his title, partnering Vladyslav Manafov. Vasilevski lost in the first round to Federico Gaio and Enrique López Pérez.
Jonathan Erlich and Divij Sharan were the defending champions but chose not to defend their title.
Zdeněk Kolář and Lukáš Rosol were the defending champions but chose not to defend their title.
Rohan Bopanna and Divij Sharan were the defending champions, but chose not to participate together. Bopanna played alongside Arjun Kadhe but lost in the first round to Antoine Hoang and Benoît Paire. Sharan teamed up with Artem Sitak but lost in the first round to Matthew Ebden and Leander Paes.
Philipp Oswald and Filip Polášek were the defending champions but chose not to defend their title.
Nikola Ćaćić and Mate Pavić were the defending champions, but they chose not to participate this year. Henri Kontinen and Édouard Roger-Vasselin won the title, defeating Jonathan Erlich and Andrei Vasilevski in the final, 6–2, 7–5.