1970 Australian Open – Women's singles

Defending champion Margaret Court defeated Kerry Melville in the final, 6–3, 6–1 to win the women's singles tennis title at the 1970 Australian Open. It was her ninth Australian Open title, and her 17th major singles title overall. It was also the first step in an eventual Grand Slam for Court, the first in women's singles in the Open Era.

Seeds
All seeds receive a bye into the second round. • # 🇦🇺 Margaret Court (champion)

• # 🇦🇺 Kerry Melville (final)

• # 🇬🇧 Winnie Shaw (semifinals)

• # 🇦🇺 Karen Krantzcke (semifinals)

• # 🇦🇺 Judy Dalton (quarterfinals)

• # 🇸🇪 Christina Sandberg (quarterfinals)

• # 🇦🇺 Lesley Hunt (quarterfinals)

• # 🇦🇺 Kerry Harris (third round)