Category:1991 in Australia by month

• September 1991 in Australia (1 C)
• October 1991 in Australia (1 C, 1 P)
• November 1991 in Australia (1 C, 1 P)
• December 1991 in Australia (1 C, 2 P)

0–9

• January 1991 in Australia (1 C, 1 P)
• February 1991 in Australia (1 P)
• March 1991 in Australia (1 C, 1 P)
• April 1991 in Australia (1 C, 1 P)
• May 1991 in Australia (1 C, 3 P)
• June 1991 in Australia (2 P)
• July 1991 in Australia (1 C, 2 P)
• August 1991 in Australia (1 C, 1 P)