David Wagner defeated the three-time defending champion Peter Norfolk in the final, 6–2, 6–3 to win the quad singles wheelchair tennis title at the 2011 Australian Open.

1. David Wagner (champion)
2. Peter Norfolk (finals)

	Final
	1	David Wagner	6	6
	2	Peter Norfolk	2	3

		Wagner	Taylor	Lapthorne	Norfolk	RR W–L	Set W–L	Game W–L	Standings
1	David Wagner		6–0, 6–2	6–3, 6–3	6–4, 3–6, 6–4	3–0	6–1	39–22	1
	Nicholas Taylor	0–6, 2–6		6–7(4–7), 4–6	3–6, 0–6	0–3	0–6	15–37	4
	Andrew Lapthorne	3–6, 3–6	7–6(7–4), 6–4		2–6, 2–6	1–2	2–4	23–34	3
2	Peter Norfolk	4–6, 6–3, 4–6	6–3, 6–0	6–2, 6–2		2–1	5–2	38–22	2

Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.

• Main Draw