See main article: 1991 Australian Open. Natasha Zvereva and Jim Pugh were the defending champions but lost in the quarterfinals to Pam Shriver and Mark Kratzmann.
Jo Durie and Jeremy Bates won in the final 2–6, 6–4, 6–4 against Robin White and Scott Davis.
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.