Norman Brookes won in the final 6–1, 6–2, 6–3 against Horace Rice to win the men's singles tennis title at the 1911 Australasian Championships.

Rodney Heath was the defending champion, but lost in the quarterfinals to Norman Brookes.

	Semifinals									Final
		Norman Brookes	7	6	6
		Robert M. Rolland	5	3	1
											Norman Brookes	6	6	6
											Horace Rice	1	2	3
		Arthur O'Hara Wood	5	3	6	1
		Horace Rice	7	6	2	6

	First round									Second round									Quarterfinals									Semifinals
											Norman Brookes	6	6	6
											Francis E. Barritt	1	2	1
																				Norman Brookes	4	6	6	6
		Rodney Heath	8	5	7	6														Rodney Heath	6	4	2	3
		Alfred B. Jones	6	7	5	1					Rodney Heath	6	6	6
											John J. Addison	3	4	1
																													Norman Brookes	7	6	6
																													Robert M. Rolland	5	3	1
											Robert M. Rolland	9	7	6
											Rupert Wertheim	7	5	4
																				Robert M. Rolland	6	6	6
																				F. Ernest Down	3	4	3
											F. Ernest Down	4	6	4	11	6
											Charles N. Barnard	6	3	6	9	2

	First round									Second round									Quarterfinals									Semifinals
											Arthur O'Hara Wood	w/o
											A.W. Foster
																				Arthur O'Hara Wood	6	6	6
																				Samuel P. England	1	2	3
											Samuel P. England	6	6	6
											P. F. Rowe	0	1	3
																													Arthur O'Hara Wood	5	3	6	1
																													Horace Rice	7	6	2	6
											Horace Rice	6	6	6
											Ronald Thomas	1	4	3
																				Horace Rice	6	6	6
																				Ashley Campbell	4	2	4

• [1] Source for the draw at ausopen.com