Dylan Alcott and Heath Davidson defeated the defending champions Andrew Lapthorne and David Wagner in the final, 6–0, 6–7(5–7), [10–6] to win the quad doubles wheelchair tennis title at the 2018 Australian Open.
| Wheelchair quad doubles | |
|---|---|
| 2018 Australian Open | |
| Champions |  Dylan Alcott Heath Davidson |
| Runners-up |  Andrew Lapthorne  David Wagner |
| Score | 6–0, 6–7(5–7), [10–6] |
Seeds edit
Andrew Lapthorne / 
David Wagner (final)
Dylan Alcott / Heath Davidson (champions)
Draw edit
Key edit
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
| Final | ||||||
| 1 | Andrew Lapthorne David Wagner
| 0 | 77 | [6] | ||
| 2 | Dylan Alcott Heath Davidson
| 6 | 65 | [10] | ||