1991 Australian Open – Men's singles

Men's singles
1991 Australian Open
Champion Boris Becker
Runner-up Ivan Lendl
Score1–6, 6–4, 6–4, 6–4
Draw128
Seeds16

Boris Becker defeated two-time defending champion Ivan Lendl in the final, 1–6, 6–4, 6–4, 6–4 to win the men's singles tennis title at the 1991 Australian Open. It was his first Australian Open title and fifth major singles title overall.