Two-time defending champions Dylan Alcott and Heath Davidson defeated Andy Lapthorne and David Wagner in the final, 6–4, 6–3 to win the quad doubles wheelchair tennis title at the 2020 Australian Open.
| Wheelchair quad doubles | |
|---|---|
| 2020 Australian Open | |
| Champions |  Dylan Alcott Heath Davidson |
| Runners-up |  Andy Lapthorne David Wagner |
| Score | 6–4, 6–3 |
Seeds edit
Dylan Alcott / Heath Davidson (champions)
Andy Lapthorne / 
David Wagner (final)
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 | Dylan Alcott Heath Davidson
| 6 | 6 | |||
| 2 | Andy Lapthorne David Wagner
| 4 | 3 | |||
