David Wagner defeated Andrew Lapthorne in the final, 2–6, 6–1, 6–4 to win the quad singles wheelchair tennis title at the 2013 Australian Open.

Peter Norfolk was the reigning champion, but did not participate.

	Final
	1	David Wagner	2	6	6
	2	Andrew Lapthorne	6	1	4

		Wagner	Hard	Taylor	Lapthorne	RR W–L	Set W–L	Game W–L	Standings
1	David Wagner		6–2, 6–3	6–1, 6–0	7–5, 1–6, 6–4	3–0	6–1	38–21	1
	Anders Hard	2–6, 3–6		6–3, 4–6, 1–6	6–4, 3–6, 3–6	0–3	2–6	28–43	4
	Nicholas Taylor	1–6, 0–6	3–6, 6–4, 6–1		6–7(5–7), 2–6	1–2	2–5	24–36	3
2	Andrew Lapthorne	5–7, 6–1, 4–6	4–6, 6–3, 6–3	7–6(7–5), 6–2		2–1	5–3	44–34	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.

• Draw