| Men's doubles | |
|---|---|
| 2018 Canberra Tennis International | |
| Champions |  Evan Hoyt  Wu Tung-lin |
| Runners-up |  Jeremy Beale Thomas Fancutt |
| Final score | 7–6(7–5), 5–7, [10–8] |
Alex Bolt and Bradley Mousley were the defending champions but only Mousley chose to defend his title, partnering Akira Santillan. Mousley lost in the quarterfinals to Evan Hoyt and Wu Tung-lin.
Hoyt and Wu won the title after defeating Jeremy Beale and Thomas Fancutt 7–6(7–5), 5–7, [10–8] in the final.
Max Purcell / Luke Saville (semifinals) Bradley Mousley / Akira Santillan (quarterfinals)
Benjamin Lock / 
Rubin Statham (quarterfinals) Brydan Klein / Scott Puodziunas (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Purcell L Saville | 6 | 5 | [10] | |||||||||||||||||||||||
| Alt | Edward Bourchier H Bourchier | 4 | 7 | [4] | 1 | M Purcell L Saville | 7 | 610 | [10] | ||||||||||||||||||
 Alessandro Petrone Francesco Vilardo | 60 | 66 |  S Doumbia F Reboul | 5 | 712 | [7] | |||||||||||||||||||||
| S Doumbia F Reboul | 77 | 78 | 1 | M Purcell L Saville | 2 | 4 | |||||||||||||||||||||
| 3 | B Lock R Statham | 6 | 6 | J Beale T Fancutt | 6 | 6 | |||||||||||||||||||||
| A Taylor J Taylor | 4 | 4 | 3 | B Lock R Statham | 4 | 6 | [9] | ||||||||||||||||||||
| J Beale T Fancutt | 79 | 3 | [10] | J Beale T Fancutt | 6 | 4 | [11] | ||||||||||||||||||||
| WC | J Frawley Jacob Grills | 67 | 6 | [7] | J Beale T Fancutt | 65 | 7 | [8] | |||||||||||||||||||
 N Kuhn  Y Mertens | 6 | 5 | [14] | E Hoyt T-l Wu | 77 | 5 | [10] | ||||||||||||||||||||
| WC | A Harris A Vukic | 4 | 7 | [16] | WC | A Harris A Vukic | 5 | 6 | [2] | ||||||||||||||||||
 H Moriya Yo Watanuki | 3 | 77 | [10] | H Moriya Yo Watanuki | 7 | 4 | [10] | ||||||||||||||||||||
| 4 | B Klein S Puodziunas | 6 | 65 | [8] | H Moriya Yo Watanuki | 62 | 6 | [2] | |||||||||||||||||||
| M Banes B Ellis | 2 | 6 | [9] | E Hoyt T-l Wu | 77 | 4 | [10] | ||||||||||||||||||||
| E Hoyt T-l Wu | 6 | 4 | [11] | E Hoyt T-l Wu | 6 | 6 | |||||||||||||||||||||
| WC | Michael Look Lucas Vuradin | 4 | 2 | 2 | B Mousley A Santillan | 3 | 2 | ||||||||||||||||||||
| 2 | B Mousley A Santillan | 6 | 6 | ||||||||||||||||||||||||
Jay Andrijic and Bradley Mousley were the defending champions, but Andrijic was no longer eligible to participate.
Mousley successfully defended the title with Lucas Miedler, defeating Quentin Halys and Johan-Sébastien Tatlot in the final, 6–4, 6–3.
Orlando Luz and Marcelo Zormann were the defending champions, but they chose to participate at the Pan American Games instead.
Noah Rubin was the defending champion, but chose not to participate this year.
Omar Jasika was the defending champion, but he chose not to participate. Taylor Harry Fritz won the title, defeating Tommy Paul in the final, 6–2, 6–7(4–7), 6–2.
Lucas Miedler and Bradley Mousley were the defending champions but were no longer eligible to compete in juniors in 2015.
Luke Saville and Jordan Thompson were the defending champions but only Saville chose to defend his title, partnering Bradley Mousley. Saville successfully defended his title.
Guilherme Clezar and Alejandro González were the defending champions but only González chose to defend his title, partnering Luis David Martínez. González lost in the first round to Chen Ti and Bradley Mousley.
Ivo Karlović was the defending champion, but lost in the first round to Quentin Halys.
Luke Saville and Jordan Thompson were the defending champions but only Saville chose to defend his title, partnering Andrew Whittington. Saville lost in the final to Alex Bolt and Bradley Mousley.
Chung Hyeon was the defending champion but chose not to defend his title.
Brydan Klein and Dane Propoggia are the defending champions but chose to defend their title with different partners. Klein partnered Bradley Mousley and lost in the semifinals to Gerard and Marcel Granollers. Propoggia partnered Vijay Sundar Prashanth but lost in the first round to Andrew Harris and Luke Saville.
Bradley Mousley and Luke Saville were the defending champions but chose to defend their title with different partners. Mousley partnered Alex Bolt and successfully defended his title. Saville partnered Matt Reid but lost in the quarterfinals to Max Purcell and Andrew Whittington.
Steve Johnson was the defending champion and successfully defended his title, defeating Tennys Sandgren in the final, 7–6(7–2), 2–6, 6–4.
Gao Xin and Zhang Zhizhen were the defending champions but lost in the quarterfinals to Gong Maoxin and Zhang Ze.
Alex Bolt and Bradley Mousley were the defending champions but only Mousley chose to defend his title, partnering Akira Santillan. Mousley lost in the first round to Adam and Jason Taylor.
Andreas Seppi was the defending champion but chose not to defend his title.
Blaž Kavčič was the defending champion but chose not to defend his title.
Tatsuma Ito was the defending champion but retired in the second round to Tseng Chun-hsin.
Gonçalo Oliveira and Akira Santillan were the defending champions but chose to defend their title with different partners. Oliveira partnered Brydan Klein but withdrew in the first round. Santillan partnered Bradley Mousley but lost in the first round to Nam Ji-sung and Song Min-kyu.
Lloyd Harris was the defending champion but chose not to defend his title.