The 1959 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Memorial Drive, Adelaide, Australia from 16 January to 26 January. It was the 47th edition of the Australian Championships (now known as the Australian Open), the 12th held in Adelaide, and the first Grand Slam tournament of the year.

Champions

Men's singles

🇺🇸 Alex Olmedo defeated 🇦🇺 Neale Fraser 6–1, 6–2, 3–6, 6–3

Women's singles

🇦🇺 Mary Carter Reitano defeated Renee Schuurman 6–2, 6–3

Men's doubles

🇦🇺 Rod Laver / 🇦🇺 Robert Mark defeated 🇦🇺 Don Candy / 🇦🇺 Bob Howe 9–7, 6–4, 6–2

Women's doubles

Sandra Reynolds / Renée Schuurman defeated 🇦🇺 Lorraine Coghlan / 🇦🇺 Mary Reitano 7–5, 6–4

Mixed doubles

Sandra Reynolds / 🇦🇺 Bob Mark defeated Renée Schuurman / 🇦🇺 Rod Laver 4–6, 13–11, 6–1