2013 Australian Open – Wheelchair men's singles
# 2013 Australian Open – Wheelchair men's singles

Shingo Kunieda defeated Stéphane Houdet in the final, 6–2, 6–0 to win the men's singles wheelchair tennis title at the 2013 Australian Open. It was his sixth Australian Open singles title and 14th major singles title overall.

Maikel Scheffers was the defending champion, but was defeated by Kunieda in the quarterfinals.

The 2013 Australian Open Wheelchair men's singles (also known as the Optius Australian Open Wheelchair men's singles for sponsorship reasons) draw, featured eight players with two seeds and a wildcard. All matches were played as best-of-three-sets.

## Draw

### Key

* 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | Stéphane Houdet | 7 | $7^7$ | | | | | | | | | | |
| | Michaël Jérémiasz | 5 | $6^4$ | | | | | | | | | | |
| | Michaël Jérémiasz | 5 | $6^4$ | | 1 | Stéphane Houdet | 6 | 3 | 6 | | | | |
| | | | | | | Ronald Vink | 1 | 6 | 3 | | | | |
| | Ronald Vink | 6 | 6 | | | Ronald Vink | 1 | 6 | 3 | | | | |
| | Gustavo Fernández | 4 | 1 | | | | | | | | | | |
| | Gustavo Fernández | 4 | 1 | | | | | | | 1 | Stéphane Houdet | 2 | 0 |
| | | | | | | | | | | 2 | Shingo Kunieda | 6 | 6 |
| WC | Adam Kellerman | 4 | 3 | | | | | | | | | | | 2 | Shingo Kunieda | 6 | 6 |
| | Stefan Olsson | 6 | 6 | | | | | | | | | | |
| | Stefan Olsson | 6 | 6 | | | Stefan Olsson | 0 | 2 | | | | | |
| | | | | | 2 | Shingo Kunieda | 6 | 6 | | | | | |
| | Maikel Scheffers | $7^7$ | 1 | 3 | 2 | Shingo Kunieda | 6 | 6 | | | | | |
| 2 | Shingo Kunieda | $6^5$ | 6 | 6 | | | | | | | | | |
